Patent Publication Number: US-9418570-B2

Title: Guitar teaching data creation device, guitar teaching system, guitar teaching data creation method, and computer-readable storage medium storing guitar teaching data

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation-in-part of International Application No. PCT/JP2013/007688, filed Dec. 27, 2013, which claims priority to Japanese Patent Application No. 2012-289220, filed Dec. 29, 2012. The contents of each of these applications are incorporated herein by reference in their entirety. 
    
    
     BACKGROUND 
     The present invention relates to a guitar teaching data creation device that creates teaching data, which is for displaying data necessary for basic training for playing guitar, and for assisting such teaching (training) of guitar, to a guitar teaching system including the guitar teaching data creation device, to a guitar teaching data creation method using the guitar teaching data creation device, to a guitar teaching data creation program for actuating the guitar teaching data creation device and to a computer-readable storage medium storing guitar teaching data. 
     With regard to a musical instrument such as a guitar, which is played by human fingers, it is one of the important teaching methods (training methods) to visually confirm an actual state of the fingers at a teaching time (training time) thereof. As this teaching method (training method), there are a method of actually watching a play of a teacher and learning a method of the play, a method of watching a video regarding fingering of the teacher, which is recorded by a video camera and the like, or a video formed by animating the video, and learning a play method therein, and the like. 
     Guitar is used in a variety of genres such as classical music, jazz, pop, rock&#39;n&#39;roll, flamenco, and modern music, and a musical instrument, technology and methodology thereof differ depending on the genres. Since the 1970&#39;s, in the U.S.A., an orientation toward new sounds has been enhanced from the scenes of jazz and rock&#39;n&#39;roll, and jazz guitarists who crossover the respective genres have appeared. However, contemporary basic technique and theory have not been able to be established due to a problem of a sound range of guitar and a problem of a mechanism on a fingerboard. In particular, though guitar has a difficult-to-understand mechanism on the fingerboard, a methodology for grasping the fingerboard arithmetically from bird&#39;s eyes has not been established, and accordingly, data for teaching, which is used for learning harmony and the mechanism, has been deficient, and a guitar training method using appropriate data for teaching has been undeveloped. 
     World-level skills required for the modern guitarists are four elements, which are score reading ability, playing ability, improvisation ability, and music composition ability. These four elements are elements common to all of jazz, classical music, modern music, rock&#39;n&#39;roll, pop and the like, and as a premise of these four elements, there is a “grasping ability for a musical instrument”. It is conceived that the grasping force for the musical instrument is composed of four skills, which are learning of the chord technique, listening, acquisition of the mechanism on the fingerboard, and the score reading ability. The listening includes chord listening, counterpoint listening, and single melody listening; however, a listening technique for guitarist is not established. As an item of making it difficult to develop the guitarist&#39;s score reading ability, a conversion ability to shift the chord onto the fingerboard is regarded as a problem. By learning the above-described four skills, the world-level skills required for the modern guitarists are established. Hence, in guitar training software, it is necessary that the basic technique and the basic theory, which serve for training all of these techniques with high accuracy, be established while getting crossover of the genres. 
     Moreover, the conventional music production software is determined on the premise of positions of sounds on a piano keyboard, and accordingly, music production software that takes such a complicated mechanism on the guitar fingerboard into consideration is not proposed. That is to say, in a case of an electronic piano that is based on the piano keyboard, for example, there is proposed a guitar teaching data creation device that inputs finger information, which indicates which finger is to be used for each of musical notes for the purpose of playing, to guitar teaching data including information indicating a musical note sequence composing a musical composition. For example, there is proposed a guitar teaching data creation device including: input operators in which correspondences to the fingers are preset; storage means for storing guitar teaching data of an electronic piano; sound emitting means for reading out the guitar teaching data stored in the storage means, and emitting sounds of the electronic piano, which are based on respective musical notes of a musical note sequence concerned with the guitar teaching data; and finger information writing means for writing finger information indicating fingers, which correspond to input operators operated while the sounds are emitted by the sound emitting means, as finger information corresponding to musical notes concerned with the sound emission into the guitar teaching data stored in the storage means (refer to Japanese Patent No. 4186353). 
     However, on the piano keyboard, the position of each sound is single, and is displayed as a number in a form of tab score display. In the tab score display, input of the chord is an input of numbers, and there has been a problem that not only it can never be said that the tab score display concerned is easy to understand, but also the tab score display concerned is not proper to such display for enhancing the skills of the guitarist. 
     As described above, there has been a problem that the conventional music production software using the positions on the sounds on the piano keyboard as a lower structure is not software incorporating therein a program for assisting the enhancement of the ability to convert the harmony onto the guitar fingerboard, the conversion being most difficult for the guitarists. 
     In consideration of the above-described circumstances, it is an object of the present invention to provide a guitar teaching data creation device capable of mathematically grasping the difficult-to-understand mechanism on the fingerboard from bird&#39;s eyes and creating the data for teaching, which is necessary to enhance the skill for the conversion of the harmony onto the fingerboard, the conversion being the most difficult for the guitarists, and moreover, to provide a guitar teaching system including the guitar teaching data creation device, a guitar teaching data creation method using the guitar teaching data creation device, and a guitar teaching data creation program for actuating the guitar teaching data creation device. 
     BRIEF SUMMARY 
     In order to achieve the foregoing object, a first aspect of the present invention is summarized to be a guitar teaching data creation device including: a central processing unit including: (a) chord inputting means for executing processing for receiving chords; (b) distribution map creating means for collating respective sounds of the chords, which are received by the chord inputting means, with addresses of sounds on a fingerboard of a teaching-oriented guitar, and creating a distribution map of the respective sounds; (c) sequence creating means for creating sequences from the distribution map created by the distribution map creating means; (d) numerical diagram creating means for creating numerical diagrams from the sequences created by the sequence creating means; (e) graphic converting means for converting the numerical diagrams, which are created by the numerical diagram creating means, into graphics; and (f) display means for prioritizing all of the graphics, which are converted by the graphic converting means, and transmitting a signal to arrange and display the graphics. 
     A second aspect of the present invention relates to a guitar teaching system including a teaching-oriented guitar in which a light emitting source composed of a dot matrix is embedded in a finger board and including a central processing unit connected to the teaching-oriented guitar. Then, the second aspect of the present invention is summarized in that the central processing unit for use in the guitar teaching system according to the second aspect of the present invention includes: (a) chord inputting means for executing processing for receiving chords; (b) distribution map creating means for collating respective sounds of the chords, which are received by the chord inputting means, with addresses of sounds on a fingerboard of a teaching-oriented guitar, and creating a distribution map of the respective sounds; (c) sequence creating means for creating sequences from the distribution map created by the distribution map creating means; (d) numerical diagram creating means for creating numerical diagrams from the sequences created by the sequence creating means; (e) graphic converting means for converting the numerical diagrams, which are created by the numerical diagram creating means, into graphics; and (f) display means for prioritizing all of the graphics, which are converted by the graphic converting means, and transmitting a signal to arrange and display the graphics on the dot matrix. 
     A third aspect of the present invention is summarized to be a guitar teaching data creation method including: (a) a step of causing chord inputting means of a central processing unit to execute processing for receiving chords; (b) a step of causing distribution map creating means of the central processing unit to collate respective sounds of the chords, which are received by the chord inputting means, with addresses of sounds on a fingerboard of a teaching-oriented guitar, and to create a distribution map of the respective sounds; (c) a step of causing sequence creating means of the central processing unit to create sequences from the distribution map created by the distribution map creating means; (d) a step of causing numerical diagram creating means of the central processing unit to create numerical diagrams from the sequences created by the sequence creating means; (e) a step of causing graphic converting means of the central processing unit to convert the numerical diagrams, which are created by the numerical diagram creating means, into graphics; and (f) a step of causing display means of the central processing unit to prioritize all of the graphics, which are converted by the graphic converting means, and to transmit a signal to arrange and display the graphics, wherein the central processing unit creates guitar teaching data. 
     A program for realizing the guitar teaching data creation method mentioned in the third aspect of the present invention is stored in a computer-readable recording medium, causes a computer system to read the recording medium, and causes a central processing unit to execute a series of processing for creating guitar teaching data, and can thereby execute the guitar teaching data creation method of the present invention. That is to say, a fourth aspect of the present invention is summarized to be a computer-readable storage medium storing a guitar teaching data creation program for causing a computer to execute a process for creating guitar teaching data, the process including: (a) a step of executing processing for receiving chords; (b) a step of collating respective sounds of the received chords with addresses of sounds on a fingerboard of a teaching-oriented guitar, and creating a distribution map of the respective sounds; (c) creating sequences from the created distribution map; (d) creating numerical diagrams from the created sequences; (e) converting the created numerical diagrams into graphics; and (f) prioritizing all of the converted graphics, and transmitting a signal to arrange and display the graphics. As a recording medium that records the guitar teaching data creation program according to the fourth aspect of the present invention, for example, there is employable a medium capable of recording a program such as an external memory device of a computer, a semiconductor memory, a magnetic disk, an optical disk, a magneto-optical disk, a magnetic tape, or the like. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic block diagram illustrating a schematic configuration of principal portions of a guitar teaching system according to a first embodiment of the present invention. 
         FIG. 2  is a schematic plan view illustrating a schematic configuration of principal portions of a guitar for teaching, which composes the guitar teaching system according to the first embodiment, which is illustrated in  FIG. 1 . 
         FIG. 3  is a schematic block diagram explaining outlines of a touch panel of the guitar for teaching, which is illustrated in  FIG. 2 , and of a circuit configuration connected to the touch panel. 
         FIG. 4  is a flowchart explaining a guitar teaching data creation method according to the first embodiment of the present invention. 
         FIG. 5  is a diagram illustrating, by English letter display, data which indicate positions of sounds on a fingerboard of a six-string guitar having 25 frets. 
         FIGS. 6A to 6C  are diagrams illustrating data which indicate positions of sounds on a staff notation, which correspond to those in  FIG. 5 . 
         FIG. 7  is a diagram illustrating data in which the positions of the sounds on the fingerboard, which are illustrated in  FIG. 5 , are converted into integer values of 1 to 156. 
         FIG. 8A  is a diagram illustrating data displayed by English letters, the data illustrating, while encircling, English letters indicating positions of sounds on the fingerboard, which are: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO C 2 = 8 ,  33 ,  64 ,  95 ,  126 ; TENOR E 2 = 16 ,  47 ,  78 ; and BASS A 1 = 36 . 
         FIG. 8B  is a diagram illustrating integer value data corresponding to those in  FIG. 8A . 
         FIG. 9  is a diagram illustrating data in which the integer value data in  FIG. 7  and  FIG. 8B  are listed into lateral six sequences of A, B, C, D, E and F from the above. 
         FIG. 10  is a diagram illustrating data in which a numerical diagram indicating the positions of the sounds on the fingerboard is converted into an X-Y coordinate. 
         FIG. 11  is a diagram schematically explaining examples of scores and scale diagrams, which are displayed on a monitor (display device) screen in a case of selecting a program of scale training. 
         FIG. 12  is a diagram schematically explaining a state where a scale diagram is displayed on the fingerboard simultaneously with  FIG. 11  in response to  FIG. 11 . 
         FIG. 13  is a diagram schematically explaining examples of a score and scale diagrams, which are displayed on the screen of the monitor (display device) in a case of selecting a training program of concords (chords) of Western classical music. 
         FIG. 14  is a diagram schematically explaining a state where a diagram of a chord of a chord symbol I is displayed on the fingerboard simultaneously with  FIG. 13  in response to  FIG. 13 . 
         FIG. 15  is a diagram explaining a state where the score and the diagrams in the training program of the concords (chords) are displayed on the screen of the monitor (display device) in a situation progressed from  FIG. 13  in terms of timing. 
         FIG. 16  is a diagram schematically explaining a state where the diagram is displayed on the fingerboard simultaneously with  FIG. 15  in response to  FIG. 15 , explaining that a diagram of a chord of a chord symbol IV 7  is further additionally displayed in a state where the fingers touch the chord (form) of the chord symbol I. 
         FIG. 17  is a diagram explaining a state where the score and the diagrams in the training program of the concords (chords) are displayed on the screen of the monitor (display device) in a situation progressed from  FIG. 15  in terms of timing. 
         FIG. 18  is a diagram schematically explaining a state where the diagram is displayed on the fingerboard simultaneously with  FIG. 17  in response to  FIG. 17 , explaining such an operation where a chord of a chord symbol V 7   3  is additionally displayed with progress of the time subsequently to the chord of the chord symbol IV 7 , and the diagram of the chord of the chord symbol I displayed in  FIG. 14  disappears. 
         FIGS. 19A and 19B  are diagrams explaining an example of a chord, which chord inputting means inputs onto the staff notation displayed on the screen of the monitor, in order to explain the guitar teaching data creation method according to the first embodiment of the present invention. 
         FIG. 20  is a diagram illustrating positions of the sounds which are: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO C 2 = 8 ,  33 ,  64 ,  95 ,  126 ; TENOR E 2 = 16 ,  47 ,  78 ; and BASS A 1 = 36 , the diagram being created by distribution map creating means as a distribution map of respective sounds corresponding to the chord illustrated in  FIG. 19 . 
         FIGS. 21A to 21E  are diagrams explaining examples of sequences created by sequence creating means from the distribution map of the respective sounds, which are illustrated in  FIG. 20 , in the guitar teaching data creation method according to the first embodiment. 
         FIGS. 22A and 22B  are diagrams explaining that 17 sequences of (A) to (Q) are listed by summarizing  FIG. 21D  and  FIG. 21E . 
         FIGS. 23A to 23I  are diagrams illustrating nine numerical diagrams in which numerical diagram creating means create so as to correspond to nine sequences of (A) to (I) among the 17 sequences illustrated in  FIG. 22  in the guitar teaching data creation method according to the first embodiment. 
         FIGS. 24J to 24Q  are diagrams illustrating eight numerical diagrams in which the numerical diagram creating means create so as to correspond to remaining eight sequences of (J) to (Q) among the 17 sequences illustrated in  FIGS. 22A and 22B  in the guitar teaching data creation method according to the first embodiment. 
         FIGS. 25A to 25I  are diagrams illustrating diagrams in which graphic converting means expresses the nine numerical diagrams of (A) to (I), which are illustrated in  FIGS. 23A to 23I , by arrays of dots in the guitar teaching data creation method according to the first embodiment. 
         FIGS. 26J to 26Q  are diagrams illustrating diagrams in which the graphic converting means expresses the eight numerical diagrams of (J) to (Q), which are illustrated in  FIGS. 24J to 24Q , by arrays of dots in the guitar teaching data creation method according to the first embodiment. 
         FIGS. 27A and 27B  are diagrams illustrating 17 diagrams displayed on the screen of the monitor and the fingerboard in such a manner that display means prioritizes the diagrams illustrated in  FIGS. 23A to 23I  and  FIGS. 24J to 24Q  and arranges the diagrams in accordance with orders of such priority in the guitar teaching data creation method according to the first embodiment. 
         FIG. 28  is a block diagram explaining a logical configuration of hardware resources of a guitar teaching data creation device that composes a guitar teaching system according to a modification example of the first embodiment of the present invention. 
         FIG. 29  is a flowchart explaining a score derivation method serving as a guitar teaching data creation method according to the modification example of the first embodiment. 
         FIGS. 30A and 30B  are diagrams explaining that diagrams illustrated in  FIG. 30A  are converted into musical notes as illustrated in  FIG. 30B  by the guitar teaching data creation method according to the modification example of the first embodiment. 
         FIGS. 31A and 31B  are diagrams illustrating that position coordinates of respective dots of the diagram illustrated in  FIG. 31A  are converted into numerical display of addresses as illustrated in  FIG. 31B  for explaining the guitar teaching data creation method according to the modification example of the first embodiment. 
         FIGS. 32A and 32B  are diagrams illustrating that position coordinates of respective dots of the diagram illustrated in  FIG. 32A  are converted into numerical display of addresses as illustrated in  FIG. 32B  for explaining the guitar teaching data creation method according to the modification example of the first embodiment. 
         FIGS. 33A and 33B  are diagrams explaining, as an explanation of the guitar teaching data creation method according to the modification example of the first embodiment, that address English letter display converting means converts the numerical display of the addresses illustrated in  FIG. 31B  into English letter display of addresses illustrated in  FIG. 33A , and converts the numerical display of the addresses illustrated in  FIG. 32B  into English letter display of addresses illustrated in  FIG. 33B . 
         FIGS. 34A and 34B  are diagrams explaining, as an explanation of the guitar teaching data creation method according to the modification example of the first embodiment, that musical note converting means converts data of English letter display of sound addresses illustrated in  FIG. 34A  into musical notes of  FIG. 34B . 
         FIGS. 35A and 35B  are diagrams explaining, as an explanation of the guitar teaching data creation method according to the modification example of the first embodiment, that the musical note converting means converts data of English letter display of sound addresses illustrated in  FIG. 35A  into musical notes of  FIG. 35B . 
         FIG. 36  is a schematic block diagram illustrating a schematic configuration of principal portions of a guitar teaching system according to another embodiment of the present invention. 
         FIG. 37  is a schematic block diagram illustrating a schematic configuration of principal portions of a guitar teaching system according to another embodiment of the present invention. 
         FIG. 38  is a block diagram explaining a logical configuration of hardware resources of a guitar teaching data creation device that composes a guitar teaching system according to a second embodiment of the present invention. 
         FIG. 39  is a flowchart explaining a guitar teaching data creation method according to the second embodiment. 
         FIG. 40  is a diagram explaining an example of a chord, which chord inputting means inputs onto a staff notation displayed on a screen of a monitor, in order to explain the guitar teaching data creation method according to the second embodiment. 
         FIG. 41A  is, as a distribution map of respective sounds corresponding to the chord illustrated in  FIG. 40 , a diagram illustrating the data indicated by English letter display of: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO D 2 = 20 ,  45 ,  76 ,  107 ,  138 ; TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120 ; and BASS F 2 = 22 ,  53 ,  84 , the data being created by the distribution map creating means, while focusing on TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120 . 
         FIG. 41B  is a diagram illustrating data indicating positions of sounds on the fingerboard, which correspond to those of  FIG. 41A , by converting the positions concerned into the integer values of 1 to 156. 
         FIG. 41C  is a diagram illustrating data in which such integer value data of  FIG. 41B  is listed into the lateral sequences of A, B, C, D, E and F. 
         FIG. 42A  is, as a distribution map of the respective sounds corresponding to the chord illustrated in  FIG. 40 , a diagram illustrating the data indicated by the English letter display of: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO D 2 = 20 ,  45 ,  76 ,  107 ,  138 ; TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120 ; and BASS F 2 = 22 ,  53 ,  84 , the data being created by the distribution map creating means, while focusing on ALTO D 2 = 20 ,  45 ,  76 ,  107 ,  138 . 
         FIG. 42B  is a diagram illustrating data indicating positions of sounds on the fingerboard, which correspond to those of  FIG. 42A , by converting the positions concerned into the integer values of 1 to 156. 
         FIG. 42C  is a diagram illustrating data in which such integer value data of  FIG. 42B  is listed into the lateral sequences of A, B, C, D, E and F. 
         FIG. 43A  is, as a distribution map of the respective sounds corresponding to the chord illustrated in  FIG. 40 , a diagram illustrating the data indicated by the English letter display of: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO D 2 = 20 ,  45 ,  76 ,  107 ,  138 ; TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120 ; and BASS F 2 = 22 ,  53 ,  84 , the data being created by the distribution map creating means, while focusing on SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 . 
         FIG. 43B  is a diagram illustrating data indicating positions of sounds on the fingerboard, which correspond to those of  FIG. 43A , by converting the positions concerned into the integer values of 1 to 156. 
         FIG. 43C  is a diagram illustrating data in which such integer value data of  FIG. 43B  is listed into lateral sequences of A, B, C, D, E and F. 
         FIGS. 44A to 44J  are diagrams illustrating 10 graphics corresponding to 10 sequences of A to J in a case of setting a third-fret F 2 = 22  to a root among 94 diagrams created by the graphic converting means in Step S 306  in accordance with the flowchart illustrated in  FIG. 39 . 
         FIGS. 45A to 45J  are diagrams illustrating 10 graphics corresponding to 10 sequences of K to T in the case of setting the third-fret F 2 = 22  to the root among the 94 diagrams created by the graphic converting means in Step S 306  in accordance with the flowchart illustrated in  FIG. 39 . 
         FIGS. 46A to 46J  are diagrams illustrating 10 graphics corresponding to 10 sequences of U to Z and a to d in the case of setting the third-fret F 2 = 22  to the root among the 94 diagrams created by the graphic converting means in Step S 306  in accordance with the flowchart illustrated in  FIG. 39 . 
         FIG. 47A  is a diagram explaining a first bylaw to determine orders of priority after sieving by fret numbers in the guitar teaching data creation method according to the second embodiment. 
         FIG. 47B  is a diagram defining a fourth-string root in the case of setting the third-fret F 2 = 22  to the root, a fifth-string root in a case of setting an eighth-fret F 2 = 53  to the root, and a sixth-string root in the case of setting a 13th-fret F 2 = 84  to the root. 
         FIGS. 48A to 48C  are diagrams illustrating data indicated by English letter display arrayed in order from “fifth-string root ( FIG. 48A )” through “sixth-string root ( FIG. 48B )” to “fourth-string root ( FIG. 48C )” in accordance with the first bylaw to determine the orders of priority in the guitar teaching data creation method according to the second embodiment. 
         FIG. 49  is a diagram illustrating a chord, which the chord inputting means inputs onto the staff notation displayed on the screen of the monitor, in order to explain the guitar teaching data creation method according to the second embodiment in a case of setting open strings to the roots. 
         FIG. 50A  is, as a distribution map of the respective sounds corresponding to the chord illustrated in  FIG. 49 , a diagram illustrating data indicated by English letter display of: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO C 2 = 8 ,  33 ,  64 ,  95 ,  126 ; TENOR F 2 = 16 ,  47 ,  78 ; and BASS A 1 = 5 ,  36 , the data being created by the distribution map creating means, while focusing on TENOR F 2 = 16 ,  47 ,  78 . 
         FIG. 50B  is a diagram illustrating data indicating positions of sounds on the fingerboard, which correspond to those of  FIG. 50A , by converting the positions concerned into the integer values of 1 to 156. 
         FIG. 50C  is a diagram illustrating data in which such integer value data of  FIG. 50B  is listed into the lateral sequences of A, B, C, D, E and F. 
         FIG. 51A  is, as a distribution map of the respective sounds corresponding to the chord illustrated in  FIG. 49 , a diagram illustrating data indicated by English letter display of: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO C 2 = 8 ,  33 ,  64 ,  95 ,  126 ; TENOR F 2 = 16 ,  47 ,  78 ; and Bass A 1 = 5 ,  36 , the data being created by the distribution map creating means, while focusing on ALTO C 2 = 8 ,  33 ,  64 ,  95 ,  126 . 
         FIG. 51B  is a diagram illustrating data indicating positions of sounds on the fingerboard, which correspond to those of  FIG. 51A , by converting the positions concerned into the integer values of 1 to 156. 
         FIG. 51C  is a diagram illustrating data in which such integer value data of  FIG. 51B  is listed into the lateral sequences of A, B, C, D, E and F. 
         FIG. 52A  is, as a distribution map of the respective sounds corresponding to the chord illustrated in  FIG. 49 , a diagram illustrating the data indicated by the English letter display of: SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 ; ALTO C 2 = 8 ,  33 ,  64 ,  95 ,  126 ; TENOR F 2 = 16 ,  47 ,  78 ; and BASS A 1 = 5 ,  36 , the data being created by the distribution map creating means, while focusing on SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 . 
         FIG. 52B  is a diagram illustrating data indicating positions of sounds on the fingerboard, which correspond to those of  FIG. 52A , by converting the positions concerned into the integer values of 1 to 156. 
         FIG. 52C  is a diagram illustrating data in which such integer value data of  FIG. 52B  is listed into lateral sequences of A, B, C, D, E and F. 
         FIGS. 53A to 53H  are diagrams illustrating eight graphics corresponding to eight sequences of A to H in 16 diagrams created by the graphic converting means in a case of setting the open string to BASS. 
         FIGS. 54A to 54H  are diagrams illustrating eight graphics corresponding to remaining eight sequences of I to P in the 16 diagrams created by the graphic converting means in the case of setting the open string to BASS. 
         FIG. 55A  is a diagram illustrating positions of sounds included in sound range I on the staff notation, and  FIG. 55B  is a diagram illustrating, as English letter display data, positions of sounds included in sound range I, the positions being indicated at one spot on the fingerboard of the six-string guitar. 
         FIG. 56A  is a diagram illustrating positions of sounds included in sound range II on the staff notation, and  FIG. 56B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range II, the positions being indicated at two spots on the fingerboard of the six-string guitar. 
         FIG. 57A  is a diagram illustrating positions of sounds included in sound range III on the staff notation, and  FIG. 57B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range III, the positions being indicated at three spots on the fingerboard of the six-string guitar. 
         FIG. 58A  is a diagram illustrating positions of sounds included in sound range IV on the staff notation, and  FIG. 58B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range IV, the positions being indicated at four spots on the fingerboard of the six-string guitar. 
         FIG. 59A  is a diagram illustrating positions of sounds included in sound range V on the staff notation, and  FIG. 59B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range V, the positions being indicated at five spots on the fingerboard of the six-string guitar. 
         FIG. 60A  is a diagram illustrating positions of sounds included in sound range VI on the staff notation, and  FIG. 60B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range VI, the positions being indicated at six spots on the fingerboard of the six-string guitar. 
         FIG. 61A  is a diagram illustrating positions of sounds included in sound range VII on the staff notation, and  FIG. 61B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range VII, the positions being indicated at five spots on the fingerboard of the six-string guitar. 
         FIG. 62A  is a diagram illustrating positions of sounds included in sound range VIII on the staff notation, and  FIG. 62B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range VIII, the positions being indicated at four spots on the fingerboard of the six-string guitar. 
         FIG. 63A  is a diagram illustrating positions of sounds included in sound range IX on the staff notation, and  FIG. 63B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range IX, the positions being indicated at three spots on the fingerboard of the six-string guitar. 
         FIG. 64A  is a diagram illustrating positions of sounds included in sound range X on the staff notation, and  FIG. 64B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range X, the positions being indicated at two spots on the fingerboard of the six-string guitar. 
         FIG. 65A  is a diagram illustrating positions of sounds included in sound range XI on the staff notation, and  FIG. 65B  is a diagram illustrating, as English letter display data, positions of the sounds included in sound range XI, the positions being indicated at one spot on the fingerboard of the six-string guitar. 
         FIG. 66  is a block diagram explaining a logical configuration of hardware resources of a guitar teaching data creation device that composes a guitar teaching system according to a third embodiment of the present invention. 
         FIG. 67  is a flowchart explaining a guitar teaching data creation method according to the third embodiment. 
         FIG. 68  is a diagram exemplarily illustrating inputted chords in order to explain the guitar teaching data creation method according to the third embodiment. 
         FIG. 69  is a diagram illustrating the chords of  FIG. 68  by accumulated sound display in order to explain the guitar teaching data creation method according to the third embodiment. 
         FIG. 70  is a diagram explaining a whole key signature for use in simplifying and explaining the guitar teaching data creation method according to the third embodiment. 
         FIG. 71  is a diagram explaining structures of chords subjected to accumulated interval display in which an interval between BASS and TENOR is 3rd, an interval between TENOR and ALTO is 3rd, and an interval between ALTO and SOPRANO is 3rd. 
         FIGS. 72A to 72H  are diagrams explaining that the chords subjected to the accumulated interval display in which the interval between BASS and TENOR is 3rd, the interval between TENOR and ALTO is 3rd, and the interval between ALTO and SOPRANO is 3rd, the chords being illustrated in  FIG. 71 , include eight types of chords. 
         FIG. 73  is a diagram explaining relationships between seven belonging keys and seven chord numbers corresponding thereto. 
         FIG. 74  is a diagram explaining “Definition Zero” for use in the guitar teaching data creation method according to the third embodiment. 
         FIG. 75  is a diagram for explaining the guitar teaching data creation method according to the third embodiment, illustrating a diagram in which two-part bodies formed by individually accumulating TENOR sounds sequentially in order of a 2nd interval, a 3rd interval, a 4th interval, a 5th interval, a 6th interval, a 7th interval, an 8th interval, a 9th interval, a 10th interval, an 11th interval and a 12th interval while taking D 1  is taken as BASS. 
         FIG. 76  is a diagram expressing, on a two-dimensional matrix, 77 types of three-part bodies formed by individually accumulating ALTO sounds sequentially on respective parts of the two-part bodies of  FIG. 75  in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval. 
         FIG. 77  is a diagram partially displaying, as a two-dimensional matrix, a part of four-part bodies formed by individually accumulating SOPRANO sounds sequentially on respective parts of the 77 types of the three-part bodies of  FIG. 76  in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval (No.  1 ). 
         FIG. 78  is a diagram partially displaying, as a two-dimensional matrix similar to that of  FIG. 77 , another part of the four-part bodies formed by individually accumulating the SOPRANO sounds sequentially on the respective parts of the 77 types of the three-part bodies of  FIG. 76  in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval (No.  2 ). 
         FIG. 79  is a diagram for explaining the guitar teaching data creation method according to the third embodiment, illustrating a number table, which is based on Definition I, for each of seven sounds of D 1  to Gb 2  arrayed in a lateral direction. 
         FIGS. 80A and 80B  are diagrams explaining intervals between respective strings of the guitar, the intervals serving as a premise to explain the guitar teaching data creation method according to the third embodiment. 
         FIG. 81  is a diagram explaining a selection address table of the respective intervals serving as “Definition I” for use in the guitar teaching data creation method according to the third embodiment. 
         FIGS. 82A to 82C  are diagrams explaining “Definition II” for use in the guitar teaching data creation method according to the third embodiment. 
         FIG. 83  is a diagram for explaining the guitar teaching data creation method according to the third embodiment, illustrating relationships between changes of respective sounds on diatonic scales while taking C as a keynote in terms of score writing and substantial changes of the respective sounds in cases of major keys. 
         FIGS. 84A to 84C  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  1 ). 
         FIGS. 85A and 85B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  2 ). 
         FIGS. 86A and 86B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  3 ). 
         FIGS. 87A and 87B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  4 ). 
         FIGS. 88A and 88B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  5 ). 
         FIGS. 89A and 89B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  6 ). 
         FIGS. 90A and 90B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  7 ). 
         FIGS. 91A and 91B  are diagrams illustrating example forms obtained by the teaching data creation method according to the third embodiment (No.  8 ). 
         FIG. 92  is a flowchart explaining a method for creating conversion data (diagram) of a chord onto a fingerboard in a guitar according to a fourth embodiment of the present invention. 
         FIG. 93  is a diagram illustrating a definition of order of displaying diagrams for each three-part bodies to six-part bodies. 
         FIG. 94A  is a diagram illustrating an example of an inputted chord,  FIG. 94B  is a diagram illustrating an example of a diagram which is eventually displayed based on the inputted chord, and  FIG. 94C  is a diagram explaining an example of an accumulated interval display of the inputted chord (hereafter, a description is made using four-part bodies, which is a basic form). 
         FIG. 95  is a diagram illustrating, by English letter display, data which indicate positions of sounds on the fingerboard. 
         FIGS. 96A to 96C  are diagrams illustrating data which indicate positions of sounds on a staff notation, which correspond to those in  FIG. 95 . 
         FIG. 97  is a diagram illustrating data in which the positions of the sounds on the fingerboard, which are illustrated in  FIG. 95 , are converted into integer values of 1 to 156. 
         FIG. 98  is a diagram illustrating data in which the integer value data of 1 to 156 are listed into lateral sequences. 
         FIG. 99  is a diagram illustrating data in which a numerical diagram indicating the positions of the sounds on the fingerboard is converted into an X-Y coordinate. 
         FIG. 100A  is a distribution map created by distribution map creating means. 
         FIG. 100B  is a diagram illustrating data in which the positions of the sounds on the fingerboard, which correspond to are the distribution map illustrated in  FIG. 100A , are converted into integer values of 1 to 156. 
         FIG. 100C  is a diagram illustrating data in which the integer value data in  FIG. 100B  are listed into lateral sequences of A, B, C, D, E and F. 
         FIGS. 101A to 101J  are diagrams illustrating first to tenth numerical diagrams which numerical diagram creating means create so as to correspond to sequences of first to tenth sequences. 
         FIGS. 102A to 102J  are diagrams illustrating 11th to 20th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 11th to 20th sequences. 
         FIGS. 103A to 103J  are diagrams illustrating 21st to 30th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 21st to 30th sequences. 
         FIGS. 104A to 104J  are diagrams illustrating 31st to 40th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 31st to 40th sequences. 
         FIGS. 105A to 105J  are diagrams illustrating 41st to 50th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 41st to 50th sequences. 
         FIGS. 106A to 106J  are diagrams illustrating 51st to 60th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 51st to 60th sequences. 
         FIGS. 107A to 107J  are diagrams illustrating 61st to 70th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 61st to 70th sequences. 
         FIGS. 108A to 108J  are diagrams illustrating 71st to 80th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 71st to 80th sequences. 
         FIGS. 109A to 109J  are diagrams illustrating 81st to 90th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 81st to 90th sequences. 
         FIGS. 110A to 110J  are diagrams illustrating 91st to 100th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 91st to 100th sequences. 
         FIGS. 111A to 111I  are diagrams illustrating 101st to 109th numerical diagrams which the numerical diagram creating means create so as to correspond to sequences of 101st to 109th sequences. 
         FIGS. 112A to 112J  are diagrams illustrating diagrams in which graphic converting means express the first to tenth numerical diagrams, which are illustrated in  FIGS. 101A to 101J , by arrays of dots. 
         FIGS. 113A to 113J  are diagrams illustrating diagrams in which the graphic converting means express the 11th to 20th numerical diagrams, which are illustrated in  FIGS. 102A to 102J , by arrays of dots. 
         FIGS. 114A to 114J  are diagrams illustrating diagrams in which the graphic converting means express the 21st to 30th numerical diagrams, which are illustrated in  FIGS. 103A to 103J , by arrays of dots. 
         FIGS. 115A to 115J  are diagrams illustrating diagrams in which the graphic converting means express the 31st to 40th numerical diagrams, which are illustrated in  FIGS. 104A to 104J , by arrays of dots. 
         FIGS. 116A to 116J  are diagrams illustrating diagrams in which the graphic converting means express the 41st to 50th numerical diagrams, which are illustrated in  FIGS. 105A to 105J , by arrays of dots. 
         FIGS. 117A to 117J  are diagrams illustrating diagrams in which the graphic converting means express the 51st to 60th numerical diagrams, which are illustrated in  FIGS. 106A to 106J , by arrays of dots. 
         FIGS. 118A to 118J  are diagrams illustrating diagrams in which the graphic converting means express the 61st to 70th numerical diagrams, which are illustrated in  FIGS. 107A to 107J , by arrays of dots. 
         FIGS. 119A to 119J  are diagrams illustrating diagrams in which the graphic converting means express the 71st to 80th numerical diagrams, which are illustrated in  FIGS. 108A to 108J , by arrays of dots. 
         FIGS. 120A to 120J  are diagrams illustrating diagrams in which the graphic converting means express the 81st to 90th numerical diagrams, which are illustrated in  FIG. 109A to 109J , by arrays of dots. 
         FIGS. 121A to 121J  are diagrams illustrating diagrams in which the graphic converting means express the 91st to 100th numerical diagrams, which are illustrated in  FIGS. 110A to 110J , by arrays of dots. 
         FIGS. 122A to 122I  are diagrams illustrating diagrams in which the graphic converting means express the 101 to 109th numerical diagrams, which are illustrated in  FIGS. 111A to 111I , by arrays of dots. 
         FIG. 123A  is a diagram illustrating a diagram (graphics) extending over 5 frets,  FIG. 123B  is a diagram illustrating a diagram extending over 6 frets,  FIG. 123C  is a diagram illustrating diagrams extending over 7 frets, and  FIG. 123D  is a diagram illustrating diagrams extending over 8 frets. 
         FIG. 124A  is a diagram illustrating diagrams within 5 frets arranged in order of fifth-string root, sixth-string root and four-string root,  FIG. 124B  is a diagram illustrating diagrams prioritized for each fifth-string root, sixth-string root and four-string root, and  FIG. 124C  is a diagram illustrating highest-priority diagrams arranged in order of fifth-string root, sixth-string root and four-string root. 
         FIG. 125A  is a diagram explaining a musical score, diagrams, a tab score displayed on a monitor (display device). 
         FIG. 125B  is a diagram illustrating diagrams sequentially displayed by clicking the diagram illustrated in  FIG. 125A . 
         FIG. 126  is a diagram illustrating a definition of addresses of 4th interval with a whole key signature. 
         FIG. 127A  is a diagram illustrating a definition of addresses on the fingerboard corresponding to a perfect 4th interval of 8th scale illustrated in  FIG. 126 , and  FIG. 127B  is a diagram illustrating a definition of addresses on the fingerboard corresponding to a perfect 4th interval of 4th scale illustrated in  FIG. 126 . 
         FIG. 128  is a diagram illustrating a definition of addresses of 5th interval with the whole key signature. 
         FIG. 129A  is a diagram illustrating a definition of addresses on the fingerboard corresponding to a perfect 5th interval of first scale illustrated in  FIG. 128 , and  FIG. 129B  is a diagram illustrating a definition of addresses on the fingerboard corresponding to a diminished 5th interval of 7th scale illustrated in  FIG. 128 . 
         FIG. 130  is a diagram illustrating a definition of addresses of 8th interval with the whole key signature. 
         FIG. 131A  is a diagram illustrating a definition of highest-priority addresses on the fingerboard corresponding to a perfect 8th interval of 8th scale illustrated in  FIG. 130 , and  FIG. 131B  is a diagram illustrating a definition of second priority addresses on the fingerboard corresponding to a diminished 8th interval of 8th scale illustrated in  FIG. 130 . 
         FIG. 132  is a flowchart explaining a part of a principal portion of a guitar teaching data creation method according to another embodiment of the present invention. 
         FIG. 133B  is examples of diagrams inputted to a database in advance in the guitar teaching data creation method illustrated in the flowchart illustrated in  FIG. 132 , and  FIG. 133A  is a diagram illustrating chords inputted to the database together with the diagrams in response to  FIG. 133B  (No.  1 ). 
         FIG. 134B  is examples of diagrams inputted to a database in advance in the guitar teaching data creation method illustrated in the flowchart illustrated in  FIG. 132 , and  FIG. 134A  is a diagram illustrating chords inputted to the database together with the diagrams in response to  FIG. 134B  (No.  2 ). 
         FIG. 135B  is examples of diagrams inputted to a database in advance in the guitar teaching data creation method illustrated in the flowchart illustrated in  FIG. 132 , and  FIG. 135A  is a diagram illustrating chords inputted to the database together with the diagrams in response to  FIG. 135B  (No.  3 ). 
         FIG. 136B  is examples of diagrams inputted to a database in advance in the guitar teaching data creation method illustrated in the flowchart illustrated in  FIG. 132 , and  FIG. 136A  is a diagram illustrating chords inputted to the database together with the diagrams in response to  FIG. 136B  (No.  4 ). 
         FIG. 137B  is examples of diagrams inputted to a database in advance in the guitar teaching data creation method illustrated in the flowchart illustrated in  FIG. 132 , and  FIG. 137A  is a diagram illustrating chords inputted to the database together with the diagrams in response to  FIG. 137B  (No.  5 ). 
     
    
    
     DETAILED DESCRIPTION 
     Next, a description is made of first to fourth embodiments of the present invention with reference to the drawings. In the following description referring to the drawings, the same or similar numerals are assigned to the same or similar portions. However, the drawings are schematic, and as a matter of course, portions different in mutual dimensional relationships and ratios are incorporated also among the drawings. Moreover, the first to fourth embodiments described below are those which exemplify devices and methods for embodying the technical idea of the present invention, and the technical idea of the present invention does not specify exemplified chords, shapes of constituent components, structure, arrangement, number of strings, number of frets, and the like of a guitar for teaching to those described below. In particular, with regard to musical notes displayed on the respective drawings, the musical notes concerned should be originally written as whole notes; however, include those written as quarter notes without tails in order to facilitate the understanding. The technical idea of the present invention can be modified in various ways within the technical scope described in the claims. 
     (First Embodiment) 
     As illustrated in  FIG. 1 , a guitar teaching system according to the first embodiment of the present invention includes: a guitar for teaching (teaching-oriented guitar: training guitar)  11 ; an interface  21   a  connected to the teaching-oriented guitar  11  via a wire  32 ; a guitar teaching data creation device  22  connected to the interface  21   a  via a wire  35 ; a monitor (display device)  23   a  connected to the guitar teaching data creation device  22  via a wire  37 ; and a piano keyboard-type keyboard  15  such as a MIDI keyboard connected to the interface  21   a  via a wire  34 . The teaching-oriented guitar  11  and the piano keyboard-type keyboard  15  are connected to each other via a wire  33 . Moreover, a headphone  16   a  is connected to the teaching-oriented guitar  11  via a wire  31 , and a headphone  16   b  is connected to the piano keyboard-type keyboard  15  via a wire  36 . 
     As illustrated in  FIG. 1 , the guitar teaching data creation device  22  is a processor including a central processing unit (CPU)  220   a  having: chord inputting means  221  for executing processing for receiving chords; distribution map creating means  222  for creating a distribution map of respective sounds of the chords, which are received by the chord inputting means  221 , by collating the respective sounds with sound addresses on a fingerboard of the teaching-oriented guitar  11 ; sequence creating means  223  for creating sequences from the distribution map created by the distribution map creating means  222 ; numerical diagram creating means  224  for creating numerical diagrams of respective combinations from the sequences created by the sequence creating means  223 ; graphic converting means  225  for converting the numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics; and display means  226  for prioritizing all of the graphics of the numerical diagrams converted by the graphic converting means  225 , and transmitting a signal to display the graphics while arranging the graphics. For example, the guitar teaching data creation device  22  can be realized by a computer system such as a personal computer (PC); however, it may be realized by a form of a monolithic IC such as a semiconductor chip and a form of a hybrid IC or module. In a case where the guitar teaching data creation device  22  is composed of a PC, the monitor  23   a  may be built in the guitar teaching data creation device  22 , or may be composed integrally with the guitar teaching data creation device  22 . Meanwhile, in a case where the guitar teaching data creation device  22  is composed of a hybrid IC or module, it is also possible to package the guitar teaching data creation device  22  in an inside of the monitor  23   a , or to package the guitar teaching data creation device  22  in an inside of the teaching-oriented guitar  11 . 
     Though not illustrated, in a similar way to a usual computer system, a program storage device and a data storage device are connected to or built in the guitar teaching data creation device  22  according to the first embodiment of the present invention. The program storage device and data storage device can be composed of semiconductor memories, magnetic disks, optical disks, magneto-optical disks, magnetic tapes, and the like. Hence, a guitar teaching data creation program for drive-controlling the chord inputting means  221 , the distribution map creating means  222 , the sequence creating means  223 , the numerical diagram creating means  224 , the graphic converting means  225  and the display means  226 , which are illustrated in  FIG. 1 , and causing these means to create guitar teaching data for use in the guitar teaching system according to the first embodiment just needs to be stored in the program storage device of a computer system that composes the guitar teaching data creation device  22 . Meanwhile, varieties of input/output data and parameters, which are necessary for guitar teaching data creation, data under computation, and the like, can be stored in the data storage device. In the data storage device, there are also stored: data as illustrated in  FIG. 5  and  FIG. 8A , which indicates positions of sounds on the fingerboard by English letter display; data as illustrated in  FIGS. 6A to 6C , which indicates such sound positions on staff notations, the sound positions corresponding to the data of  FIG. 5  and  FIG. 8A ; data as illustrated in  FIG. 7  and  FIG. 8B , in which the sound positions on the fingerboard are converted into integer values of 1 to 156; data as illustrated in  FIG. 9 , in which the data converted into the integer values are listed to lateral sequences; data as illustrated in  FIG. 10 , in which respective positions of a numeric diagram are converted into X-Y coordinates; and the like. 
     For example, the guitar teaching data creation program according to the first embodiment of the present invention is stored in a computer-readable external recording medium, and the program storage device of the guitar teaching data creation device  22  is caused to read a content recorded in the external recording medium, whereby the guitar teaching data creation program concerned can execute a series of processing of the guitar teaching data creation of the present invention. Here, the “computer-readable external recording medium” stands for such a medium that can record a program, the computer-readable external recording medium including, for example, an external memory device of a computer, a semiconductor memory, a magnetic disk, an optical disk, a magneto-optical disk, a magnetic tape, and the like. Specifically, a flexible disk, a CD-ROM, a magneto-optical (MO) disk, a cassette tape, an open-reel tape and the like are included in the “computer-readable external recording medium”. For example, a main body of the guitar teaching data creation device  22  can be configured to build therein a flexible disk device (e.g., a flexible disk drive) and an optical disk device (e.g., an optical disk drive) or to cause the flexible disk device and the optical disk device to be externally connected thereto. The flexible disk is inserted into the flexible disk drive from an insertion slot thereof, and the CD-ROM is inserted into the optical disk drive from an insertion slot thereof, and both of them are subjected to a predetermined reading operation, whereby the programs stored in these external recording mediums can be installed into the program storage device that composes the guitar teaching data creation device  22 . Moreover, a predetermined drive device is connected to the guitar teaching data creation device  22 , whereby, for example, the read-only memory (ROM) and the cassette tape as a magnetic tape device can be used as external recording mediums. Furthermore, it is possible to store the guitar teaching data creation program in the program storage device via an information processing network such as the Internet in place of using the external recording medium. 
     The guitar teaching data creation device  22  according to the first embodiment of the present invention is configurable of the computer system such as the PC, and accordingly, illustration thereof is omitted. However, the guitar teaching data creation device  22  may further include input devices such as a PC keyboard, a mouse, and a light pen. Specifically, the mouse is clicked for the staff notation displayed on the monitor  23   a , whereby musical notes can be inputted. Moreover, as an output device, a printer device or the like may be provided as well as the monitor  23   a  illustrated in  FIG. 1 . 
     As illustrated in  FIG. 2 , the teaching-oriented guitar  11  of the guitar teaching system according to the first embodiment includes: a body  123 ; a neck  122 , which is connected to a left side of the body  123  via a neck joint (neck heel), and has a fingerboard on an upper surface thereof; and a head stock (head)  121  connected to a left-side tip end of the neck  122 . As illustrated in  FIG. 2 , the teaching-oriented guitar  11  of the guitar teaching system according to the first embodiment is a six-string guitar, and accordingly, six pegs  124   a ,  124   b  . . . and  124   f  are provided on the head stock  121 . On a neck  122 -side position of a top plate (top)  125  of the body  123 , there is provided a pickup  131  that converts vibrations of strings into electrical signals, and a bridge  132  that supports the strings and transmits the vibrations of the strings to the body  123  is provided separately from the pickup  131 . Moreover, a tail piece  133  that fixes the strings to the body  123  is provided separately from the bridge  132 . Then, as illustrated in  FIG. 2 , on a region located on an upper right of the top plate  125 , a touch panel (touch board)  114  is embedded in a window portion of the top plate  125  so that a top surface of the touch panel  114  can be exposed. For the touch panel  114 , there are employable pointing devices (input devices) of a variety of systems such as a matrix switching system, a resistance film system, a surface acoustic wave system, an infrared system, an electromagnetic induction system, and an electrostatic capacitance system. The resistance film system and the electrostatic capacitance system are mainly mounted on a small/middle-sized instrument such as a cellular phone, a personal digital assistant (PDA) and a car navigation system, the electromagnetic induction system is oriented for a tablet PC using a dedicated pen, and the ultrasonic surface acoustic wave system and the infrared scanning system are employed for a business instrument such as a point of sale (POS) and an automatic teller machine (ATM), and an industrial large-sized instrument such as an FA instrument, and the pointing device of any thereof is usable as the touch panel  114 . Moreover, the touch panel  114  may have a function of a multi-touch display capable of making an input by receiving simultaneous touches of a plurality of points thereof. 
     On an upper surface of the neck  122 , the fingerboard made of wood such as maple, rosewood and ebony or of fiber-reinforced plastics is provided, and on a top surface of the fingerboard, thin sticks made of metal such as nickel silver and brass are provided as frets in a direction perpendicular to the strings. The frets are embedded in the top surface of the fingerboard at positions on the fingerboard, where the strings are touched, so as to become hard protrusions attached perpendicularly to the strings, and intervals are determined by string length changes between the frets and the bridge  132 . For sake of convenience, the following description is made while taking a case where 25 frets are provided on the fingerboard; however, it should be noted that the number of frets is not limited to 25, and differs, for example, in a range of 22 to 30 depending on a type of the guitar, and accordingly, the number of frets is merely an example. As illustrated in  FIG. 2 , into respective rectangular regions among the frets of the fingerboard on the upper surface of the neck  122 , luminous bodies such as light emitting diodes (LEDs), labeled L 1(m−3) , L 1(m−2) , L 1(m−1) , L 1m , L 1(m+1) , . . . , L 2(m+1) , . . . , L 3(m+1) , . . . , L 4(m+1) , . . . , L 5(m+1) , . . . , L 6(m+1) , are embedded in a matrix, whereby a light emitting source  111  is composed. In a case of the six-string guitar, if there are 25 frets, then luminous bodies L ij  (i=integers of 1 to 6; j=integers of 1 to 26) are embedded six by six in the respective rectangular regions, of which number is 25+1=26, and accordingly, the luminous bodies L ij , of which number is 6×16=156, are embedded in a matrix. The luminous bodies L ij  are embedded in a matrix whereby, in the teaching-oriented guitar  11  of the guitar teaching system according to the first embodiment, the luminous bodies L ij  are lighted at predetermined positions. In this way, desired guitar teaching data can be displayed. 
     As illustrated in  FIG. 3 , in an inside of the body  123 , there are built: a CPU  113  connected to the touch board or panel  114 ; and an electronic circuit  112  such as a shift register connected to the CPU  113 . At a predetermined position, the electronic circuit  112  as an LED drive circuit selectively lights arbitrary luminous bodies L ij  in an LED dot matrix of the light emitting source  111 , which is composed of the luminous bodies L ij  embedded in a matrix. A variety of circuits known in public are employable as the electronic circuit  112  depending on a drive method of the LED dot matrix. The CPU  113  includes a storage device, and a training menu is stored in the storage device of the CPU  113 . For example, the training menu is divided into scales, chords, intervals (melodious intervals), and the like. A program is selected by using the touch panel  114 , and the training menu stored in the storage device of the CPU  113  can be read out. The interface  21   a  illustrated in  FIG. 1  functions to synchronize a training program for selectively lighting, at the predetermined positions, the arbitrary luminous bodies L ij  in the LED dot matrix provided in the CPU  113  built in the body  123  of the teaching-oriented guitar  11 , the CPU  113  being illustrated in  FIG. 3 , and the guitar teaching data creation program for actuating the guitar teaching data creation device  22 , which is illustrated in  FIG. 1 , with each other. 
     For example, in a case of selecting a program of a scale training by using the touch panel  114 , a diagram is displayed on the screen of the monitor (display device)  23   a  illustrated in  FIG. 1  together with a score illustrated in  FIG. 11 , and this diagram is displayed on the fingerboard as illustrated simultaneously in  FIG. 12 . That is to say, by using the touch panel  114 , the electronic circuit  112  can be driven to light the luminous bodies L ij  at the predetermined positions, and as illustrated in  FIG. 12 , the diagram can be displayed on the fingerboard by the electronic circuit  112  in accordance with sound addresses of such a desired training menu. 
     Moreover, for example, in a case of selecting a training program of concords (chords) of Western classical music by using the touch panel  114 , diagrams are displayed below an upper-stage score illustrated in  FIG. 13  in a one-to-one correspondence on the screen of the monitor (display device)  23   a  illustrated in  FIG. 1 .  FIG. 13  illustrates chords by chord symbols in accordance with display of a usual musical theory. In each of the chord symbols, an interval to a keynote is represented by Roman numeral, and accordingly, a triad having an interval i as a root is represented as I, and a triad having an interval ii as a root is represented as II, and in a case of a seventh chord, 7 is added as a subscript to a lower right of the Roman numeral, and a triad is represented as V 7 . There are two ways of writing an inverted interval, and in  FIG. 13 , an inversion index is added as a superscript to an upper right in accordance with a way of writing, which is general in Japan at present, and a triad is represented as IV 2 . A rightward arrow illustrated at a middle-stage position on a left side of  FIG. 13  indicates an elapse (timing) in time series. That is to say, a vertical line, which is perpendicular to the rightward arrow in  FIG. 13  so as to be in contact with a tip end of the arrow stands for an elapse (timing) in time series in the training program of the concords (chords). A diagram of the chord of the chord symbol I, which is surrounded by a wavy line added with Symbol A at an upper left (left-end) position of  FIG. 13 , is displayed at a headstock  121 -side position on the fingerboard as illustrated in  FIG. 14  at the timing of the arrow in  FIG. 13 . That is to say, by using the touch panel  114 , the electronic circuit  112  can be driven to light the luminous bodies L ij  at the predetermined positions, and as illustrated in  FIG. 14 , the diagram of the chord of the chord symbol I can be displayed on the fingerboard by the electronic circuit  112  in accordance with sound addresses of the desired training menu. 
     Moreover, a rightward arrow illustrated at a middle-stage position close to the left side of  FIG. 15  progresses to the right more than the rightward arrow of  FIG. 13 . That is to say, as the elapse (timing) in time series is illustrated by the vertical line perpendicular to the arrow so as to be in contact with the tip end of the rightward arrow,  FIG. 15  schematically illustrates a situation that progresses more than in  FIG. 13  in terms of timing. Except for the timing, such a content displayed in  FIG. 15  is substantially the same as that in  FIG. 13 . In a similar way to  FIG. 13 , a score is illustrated on the upper stage, and diagrams corresponding thereto are displayed in a one-to-one correspondence below the upper-stage score. Note that a diagram of a chord of a chord symbol IV 7 , which is surrounded by a wavy line added with Symbol B, the diagram being second from the upper left of  FIG. 15 , is additionally displayed on a body  123 -side position on the fingerboard as illustrated in  FIG. 16 . That is to say, in a state where the chord (form) of the chord symbol I surrounded by the wavy line added with Symbol A on the upper left of  FIG. 13  is touched by fingers  51   a , the diagram of the chord of the chord symbol IV 7  is further additionally displayed on the fingerboard as illustrated in  FIG. 16 . That is to say, subsequently to the chord of the chord symbol I, the chord of the chord symbol IV 7  is additionally displayed on the fingerboard by the electronic circuit  112  as time progresses. 
     Moreover, a rightward arrow illustrated at a middle-stage position in  FIG. 17  further progresses to the right direction more than the rightward arrow of  FIG. 15 . That is to say, as the elapse (timing) in time series is illustrated by the vertical line perpendicular to the arrow so as to be in contact with the tip end of the rightward arrow,  FIG. 17  schematically illustrates a situation that progresses more than in  FIG. 15  in terms of timing. Except for the timing, such a content displayed in  FIG. 17  is substantially the same as those in  FIG. 13  and  FIG. 15 . In a similar way to  FIG. 13  and  FIG. 15 , a score is illustrated on the upper stage, and diagrams corresponding thereto are displayed in a one-to-one correspondence below the upper-stage score. Note that a diagram of a chord of a chord symbol IV 7   3 , which is surrounded by a wavy line added with Symbol C, the diagram being third from the upper left of  FIG. 17 , is additionally displayed on the fingerboard as illustrated in  FIG. 18 . At a time-series stage illustrated in  FIG. 18 , the diagram of the chord of the chord symbol I, which is displayed at the headstock  121 -side position on the fingerboard in  FIG. 13  and  FIG. 15 , disappears. That is to say, at such time-series timing illustrated in  FIG. 18 , in a state where the chord (form) of the chord symbol IV 7  surrounded by the wavy line added with Symbol B on the upper left of  FIG. 15  is touched by fingers  51   b , the diagram of the chord of the chord symbol IV 7   3  is further additionally displayed on the fingerboard as illustrated in  FIG. 18 . That is to say, the electronic circuit  112  operates to additionally display the chord of the chord symbol IV 7   3  on the fingerboard as the time progresses subsequently to the chord of the chord symbol IV 7 , and to erase the diagram of the chord of the chord symbol I. As seen from  FIG. 18 , in the state where the chord (form) of the chord symbol IV 7  added with Symbol B is touched, a part of the diagram of the chord of the chord symbol V 7   3  is hidden by the fingers  51   b . Accordingly, in this case, it is preferable to confirm the diagram of the chord of the chord symbol V 7   3 , which is added with Symbol C, not on the fingerboard but on the screen of the monitor  23   a  illustrated in  FIG. 1 . 
     &lt;Guitar Teaching Data Creation Method&gt; 
     A description is made of a guitar teaching data creation method according to the first embodiment of the present invention by using a flowchart of  FIG. 4 ,  FIG. 5  to  FIG. 10  and  FIGS. 19A and 19B  to  FIGS. 27A and 27B . Note that the guitar teaching data creation method to be described below is merely an example, and as a matter of course, is realizable by a variety of creation methods other than this method, the variety of creation methods including modification examples of this method. 
     (A) First, the guitar teaching data creation program stored in the program storage device connected to the guitar teaching data creation device  22  illustrated in  FIG. 1  is started. Then, the guitar teaching data creation program drives the chord inputting means  221  of the CPU  220   a  that composes the guitar teaching data creation device  22  illustrated in  FIG. 1 , and receives the chord in Step S 101 . Here, in the guitar teaching data creation program stored in the program storage device, an application program that displays a staff notation similar to that in usual music production software is included. Hence, the staff notation is displayed on the screen of the monitor (display device)  23   a , which is illustrated in  FIG. 1 , by using the guitar teaching data creation program, and the guitar teaching data creation program causes the chord inputting means  221  to sequentially receive the chords as illustrated in  FIGS. 19A and 19B  by using electrical signals generated by clicking the mouse to the staff notation on the screen of the monitor  23   a . The chords received by the chord inputting means  221  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (B) Next, in Step S 102 , the guitar teaching data creation program causes the distribution map creating means  222  of the CPU  220   a  illustrated in  FIG. 1  to read out, from the data storage device, the data as illustrated in  FIG. 5  and indicating the sound positions on the fingerboard by the English letter display, the data as illustrated in  FIGS. 6A to 6C  and indicating the sound positions on the staff notation, the data as illustrated in  FIG. 7 , in which the sound positions on the fingerboard are converted into the integer values of 1 to 156, and the chords received in Step S 101 . Here,  FIG. 5  illustrates the sound positions on the fingerboard of the six-string guitar in the case where the number of frets is 25. In a 12th fret to a 23rd fret, an array of a 0th fret to an 11th fret is repeated, and in 24th and 25 frets, an array of 0th and 1st frets is repeated.  FIGS. 6A to 6C  illustrate sound positions on the staff notation, which correspond to those of  FIG. 5 . That is to say,  FIGS. 6A to 6C  can be caused to correspond to arrays in which scales are raised by a halftone fret by fret:  FIG. 6A  can be caused to correspond to the 0th fret (lowest sound) to a 21st fret in the sixth string of  FIG. 5 ;  FIG. 6B  can be caused to correspond to a 3rd fret to the 23rd fret in the second string of  FIG. 5 ; and  FIG. 6C  can be caused to correspond to a 19th fret to the 24th fret in the first string of  FIG. 5 . Then, from a correspondence relationship of the data of the addresses of the respective sounds between  FIG. 5  and  FIGS. 6A to 6C , and from numeric value data of  FIG. 7 , a distribution map of the respective sounds, which is as illustrated in  FIG. 20 , is created by collating the addresses concerned with the addresses of the sounds on the fingerboard on the teaching-oriented guitar  11 . Here,  FIG. 7  illustrates the data in which the sound positions on the fingerboard, which are illustrated in  FIG. 5 , are converted into the integer values of 1 to 156. In  FIG. 20 , as the distribution map of the respective sounds, SOPRANO  31 ,  62 ,  87 ,  118 ,  149 , ALTO  8 ,  33 ,  64 ,  95 ,  126 , TENOR  16 ,  47 ,  78 , and BASS  36  are illustrated. The distribution map as illustrated in  FIG. 20 , which is created by the distribution map creating means  222 , is stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (C) Then, in Step S 103 , the guitar teaching data creation program causes the sequence creating means  223  of the CPU  220   a  to read out, from the data storage device, the data as illustrated in  FIG. 8A  and indicating the sound positions on the fingerboard by the English letter display, the data as illustrated in  FIG. 8B , in which the sound positions on the fingerboard are converted into the integer values of 1 to 156, the data as illustrated in  FIG. 9  in which the data converted into the integer values are listed to the lateral sequences, and the distribution map created in Step S 102 . Then, by using the conversion data illustrated in  FIG. 8A ,  FIG. 8B  and  FIG. 9 , sequences of integer values are created from the distribution map created by the distribution map creating means  222 .  FIG. 8A  repeatedly illustrates the sound positions on the fingerboard, which are illustrated in  FIG. 5 , in which sound positions of SOPRANO A 3 , ALTO C 2 , TENOR E 2  and BASS A 1  are illustrated while being encircled.  FIG. 8B  illustrates the data in which the sound positions on the fingerboard, which are illustrated in  FIG. 8A , are converted into the integer values of 1 to 156.  FIG. 9  illustrates data in which  FIG. 8B  is listed into lateral sequences. In  FIG. 9 , a list of six sequences of A, B, C, D, E, F is illustrated. Examples are described below. 
     (a) While taking, as a root, BASS  36  (A 1 = 36  of 5th fret) of the distribution map of  FIG. 20 , TENOR  16 ,  47 ,  78  are searched (selected). Note that a term “root” appears below; however, strictly, it should be described as “BASS”. However, for sake of convenience, the term “root” is used in this description. From such lateral sequence lists of  FIG. 9 , TENOR  78  is on the sequence list of F in the same way as BASS  36 , and is arrayed on the same string as that of BASS  36 , and accordingly, it is impossible to touch TENOR  78 . Hence, TENOR  78  is deleted, and as illustrated in  FIG. 21A , TENOR  16 ,  47  are extracted with respect to BASS  36 . TENOR  16 ,  47  extracted as illustrated in  FIG. 21A  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (b) From TENOR  16  of the distribution map of  FIG. 20 , ALTO  8 ,  33 ,  64 ,  95 ,  126  are searched. From the lateral sequence lists of  FIG. 9 , ALTO  64  is on the sequence list of D in the same way as TENOR  16 , and is arrayed on the same string as that of TENOR  16 , and accordingly, it is impossible to touch ALTO  64 . Hence, ALTO  64  is deleted, and it is also impossible to touch SOPRANO  118  on the sequence list of D, and SOPRANO  118  is deleted. Moreover, ALTO  126  is on the sequence list of F in the same way as TENOR  78 , and it is impossible to touch ALTO  126 , and accordingly, ALTO  126  is deleted. As illustrated in  FIG. 21B , ALTO  8 ,  33 ,  95  are extracted with respect to TENOR  16 . ALTO  8 ,  33 ,  95  extracted as illustrated in  FIG. 21B  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (c) In a similar way, from TENOR  47  of the distribution map of  FIG. 20 , ALTO  8 ,  33 ,  64 ,  95 ,  126  are searched. From the lateral sequence lists of  FIG. 9 , ALTO  95  is on the sequence list of E in the same way as TENOR  47 , and it is impossible to touch ALTO  95 , and accordingly, ALTO  95  is deleted. SOPRANO  149  on the sequence list E is also deleted. Moreover, ALTO  126  is on the sequence list of F in the same way as TENOR  78 , and it is impossible to touch ALTO  126 , and accordingly, ALTO  126  is deleted. As illustrated in  FIG. 21C , ALTO  8 ,  33 ,  64  are extracted with respect to TENOR  47 . ALTO  8 ,  33 ,  64  extracted as illustrated in  FIG. 21C  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (d) From ALTO  8  of the distribution map of  FIG. 20 , SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched. From the lateral sequence lists of  FIG. 9 , SOPRANO  62  is on the sequence list of B in the same way as ALTO  8 , and it is impossible to touch SOPRANO  62 , and accordingly, SOPRANO  62  is deleted (SOPRANO  118  that was on the sequence list of D is already deleted). Then, as illustrated in  FIG. 21D , SOPRANO  31 ,  87 ,  149  are extracted with respect to ALTO  8 . SOPRANO  31 ,  87 ,  149  extracted as illustrated in  FIG. 21D  are stored in the data storage device connected to the guitar teaching data creation device  22 . In a similar way, from ALTO  33  of the distribution map of  FIG. 20 , SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched. From the lateral sequence lists of  FIG. 9 , SOPRANO  87  is on the sequence list of C in the same way as ALTO  33 , and it is impossible to touch SOPRANO  87 , and accordingly, SOPRANO  87  is deleted (SOPRANO  118  that was on the sequence list of D is already deleted). Then, as illustrated in  FIG. 21D , SOPRANO  31 ,  62 ,  149  are extracted with respect to ALTO  33 . SOPRANO  31 ,  62 ,  149  extracted as illustrated in  FIG. 21D  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     In a similar way, from ALTO  95  of the distribution map of  FIG. 20 , SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched. From the lateral sequence lists of  FIG. 9 , SOPRANO  149  is on the sequence list of E in the same way as ALTO  95 , and it is impossible to touch SOPRANO  149 , and accordingly, SOPRANO  149  is deleted (SOPRANO  118  that was on the sequence list of D is already deleted). Then, as illustrated in  FIG. 21D , SOPRANO  31 ,  62 ,  87  are extracted with respect to ALTO  95 . SOPRANO  31 ,  62 ,  87  extracted as illustrated in  FIG. 21D  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (e) In a similar way, in a case where ALTO  8 ,  33 ,  64  are extracted with respect to TENOR  47  in  FIG. 21C , SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  8  of the distribution map of  FIG. 20 . From the lateral sequence lists of  FIG. 9 , SOPRANO  62  is on the sequence list of B in the same way as ALTO  8 , and it is impossible to touch SOPRANO  62 , and accordingly, SOPRANO  62  is deleted (SOPRANO  149  that was on the sequence list of E is already deleted). Then, as illustrated in  FIG. 21E , SOPRANO  31 ,  87 ,  118  are extracted with respect to ALTO  8 . SOPRANO  31 ,  87 ,  118  extracted as illustrated in  FIG. 21E  are stored in the data storage device connected to the guitar teaching data creation device  22 . In a similar way, from ALTO  33  of the distribution map of  FIG. 20 , SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched. From the lateral sequence lists of  FIG. 9 , SOPRANO  87  is on the sequence list of C in the same way as ALTO  33 , and it is impossible to touch SOPRANO  87 , and accordingly, SOPRANO  87  is deleted (SOPRANO  149  that was on the sequence list of E is already deleted.) Moreover, SOPRANO  118  on the sequence list of D in the same way as ALTO  64  is also deleted. Then, as illustrated in  FIG. 21E , SOPRANO  31 ,  62  are extracted with respect to ALTO  33 . SOPRANO  31 ,  62  extracted as illustrated in  FIG. 21E  are stored in the data storage device connected to the guitar teaching data creation device  22 . In a similar way, from ALTO  64  of the distribution map of  FIG. 20 , SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched. From the lateral sequence lists of  FIG. 9 , SOPRANO  118  is on the sequence list of D in the same way as ALTO  64 , and it is impossible to touch SOPRANO  118 , and accordingly, SOPRANO  118  is deleted (SOPRANO  149  that was on the sequence list of E is already deleted). Then, as illustrated in  FIG. 21E , SOPRANO  31 ,  62 ,  87  are extracted with respect to ALTO  64 . SOPRANO  31 ,  62 ,  87  extracted as illustrated in  FIG. 21E  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     From  FIG. 21D  and  FIG. 21E , it is understood that 17 sequences of (A) to (Q) illustrated in  FIG. 22B  are listed. The 17 sequences of (A) to (Q), which are created by the sequence creating means  223 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (D) Moreover, in Step S 104 , the guitar teaching data creation program causes the numerical diagram creating means  224  of the CPU  220   a  to read out the 17 sequences of (A) to (Q), which are created in Step S 103 , from the data storage device, and individually creates 17 numerical diagrams, which are sequentially illustrated in  FIGS. 23A to 23I  and  FIGS. 24J to 24Q , from the 17 sequences, which are created by the sequence creating means  223 , by using the data of the integer values of 1 to 156 of  FIG. 8B . That is to say, the sequence of (A) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23A , the sequence of (B) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23B , the sequence of (C) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23C , the sequence of (D) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23D , the sequence of (E) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23E , the sequence of (F) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23F , the sequence of (G) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23G , the sequence of (H) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23H , the sequence of (I) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23I , the sequence of (J) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 23J , the sequence of (K) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24K , the sequence of (L) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24L , the sequence of (M) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24M , the sequence of (N) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24N , the sequence of (O) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24O , the sequence of (P) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24P , and the sequence of (Q) illustrated in  FIG. 22B  corresponds to the numerical diagram of  FIG. 24Q . The 17 numerical diagrams created by the numerical diagram creating means  224  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (E) Moreover, in Step S 105 , the guitar teaching data creation program causes the graphic converting means  225  of the central processing unit  220   a  to read out data for converting the respective positions of the numerical diagram into X-Y coordinates, which are illustrated in  FIG. 10 , and the 17 numerical diagrams, which are created in Step S 104 , from the data storage device. Then, by using the data for converting the numerical diagrams indicating the sound positions on the fingerboard into the X-Y coordinates, which are illustrated in  FIG. 10 , the graphic converting means  225  converts the 17 numerical diagrams, which are created by the numerical diagram creating means  224 , into 17 graphics in  FIGS. 25A to 25I  and  FIGS. 26J to 26Q . When the X-Y coordinate conversion data illustrated in  FIG. 10  is used, X-Y coordinates illustrated in  FIG. 22A  are obtained, which are 36=(5.5, 0.0), 16=(2.5, 2.0), 8=(1.5,4.0), 33=(5.5,3.0), 95=(15.5,1.0), 31=(5.5,5.0), 62=(10.5,4.0), 87=(14.5,3.0), 149=(24.5,1.0), 47=(7.5,1.0), 64=(10.5,2.0), and 118=(19.5,2.0). Accordingly, values of the X-Y coordinates=(a,b) of the respective numerals expressed on the 17 numerical diagrams illustrated in  FIGS. 23A to 23I  and  FIGS. 24J to 24Q  are assigned to an inequality of circle:
 
( X−a ) 2 +( Y−b ) 2   ≦r   2   (1)
 
     and dot shapes obtained by filling circles are formed in regions defined by Expression (1). Then, diagrams are drawn using arrays of these dots, and are converted into the 17 graphics in  FIGS. 25A to 25I  and  FIGS. 26J to 26Q . In an event of drawing the dots obtained by filling the circles, a size of a square with a side length equal to 1, the square being defined by being surrounded by the frets and the strings on the fingerboard illustrated in  FIG. 2 , is taken into consideration. That is to say, in order that a circle (dot) with a radius equal to a size of ¼ of one square on the fingerboard can be obtained, a value of r=0.25 is used in Expression (1). That is to say, the graphic of the diagram of  FIG. 25A  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23A  are displayed by an array of dots obtained by filling such circles with r=0.25, the graphic of the diagram of  FIG. 25B  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23B  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25C  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23C  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25D  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23D  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25E  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23E  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25F  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23F  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25G  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23G  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25H  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23H  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 25I  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 23I  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26J  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24J  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26K  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24K  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26L  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24L  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26M  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24M  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26N  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24N  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26O  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24O  are displayed by such an array of the dots, the graphic of the diagram of  FIG. 26P  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24P  are displayed by such an array of the dots, and the graphic of the diagram of  FIG. 26Q  corresponds to a graphic in which the respective numerals of the numerical diagram of  FIG. 24Q  are displayed by such an array of the dots. The graphics of the 17 diagrams, which are converted by the graphic converting means  225 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (F) Then, in Step S 106 , the guitar teaching data creation program causes the display means  226  of the central processing unit  220   a  to read out the graphics of the 17 diagrams, which are displayed by the arrays of the dots obtained by filling the circles with r=0.25, the circles being are converted in Step S 105 , from the data storage device, and prioritizes all of the graphics (diagrams) converted by the graphic converting means  225 . Such prioritization is given in order of forms by which it is possible to touch the 17 graphics (diagrams) of  FIGS. 25A to 25I and 26J to 26Q . Moreover, one of the graphics (diagrams) of the forms, which is given highest priority, is selected. In Step S 106 , in accordance with such orders of priority, the graphics are arranged as illustrated in  FIGS. 27A and 27B , and the signal to display the graphics of the diagrams on the screen of the monitor  23   a  and the fingerboard on the upper surface of the neck  122  is transmitted. As a result, in Step S 106 , the graphics of the 17 diagrams, which are as illustrated in  FIGS. 27A and 27B  and are individually displayed by the arrays of the dots, are displayed on the screen of the monitor  23   a  and the fingerboard sequentially in order of the forms by which it is possible to touch the strings. Note that, in  FIG. 27B , the dots are displayed as black circles for the sake of illustration convenience for such a monochrome drawing, and the diagrams are illustrated by the arrays of the black circles; however, it is not necessary that the actual diagrams be displayed by black circles. For example, if the two-dimensional matrix of the luminous bodies L ij  illustrated in  FIG. 2  is composed of an array of red LEDs, then the actual diagrams are displayed by red dots, if the two-dimensional matrix of the luminous bodies L ij  is composed of an array of green LEDs, then the actual diagrams are displayed by green dots, and if the two-dimensional matrix of the luminous bodies L ij  is composed of an array of yellow LEDs, then the actual diagrams are displayed by yellow dots. In such a way, it is possible to express the diagrams by arrays of dots with a variety of colors. In a similar way, also on the screen of the monitor  23   a , it is possible to illustrate the diagrams by selecting dots with an arbitrary color. 
     &lt;Guitar Teaching Data Creation Program&gt; 
     Such operations of a series of the guitar teaching data creation method illustrated in  FIG. 4  can be executed by controlling the CPU  220   a , which is illustrated in  FIG. 1 , by the guitar teaching data creation program with an algorithm equivalent to that of  FIG. 4 . As already mentioned, this guitar teaching data creation program just needs to be stored in the program storage device of the computer system that composes the CPU  220   a  according to the first embodiment. Moreover, this program is stored in the computer-readable recording medium, and the program storage device of the CPU  220   a  is caused to read this recording medium, whereby a series of the processing of the guitar teaching data creation method according to the first embodiment can be executed. Here, the “computer-readable recording medium” stands for such a medium that can record a program, the computer-readable external recording medium including, for example, an external memory device of a computer, a semiconductor memory, a magnetic disk, an optical disk, a magneto-optical disk, a magnetic tape, and the like. For example, a main body of the CPU  220   a  can be configured to build therein a flexible disk device (e.g., a flexible disk drive) and an optical disk device (e.g., an optical disk drive) or to cause the flexible disk device and the optical disk device to be externally connected thereto. The flexible disk is inserted into the flexible disk drive from an insertion slot thereof, and the CD-ROM is inserted into the optical disk drive from an insertion slot thereof, and both of them are subjected to a predetermined reading operation, whereby the guitar teaching data creation programs stored in these external recording mediums can be installed into the program storage device that composes the CPU  220   a . Moreover, a predetermined drive device is connected to the guitar teaching data creation device  22 , whereby, for example, the ROM, the magnetic tape device and the like can also be used. Furthermore, it is possible to store the guitar teaching data creation program according to the first embodiment in the program storage device via an information processing network such as the Internet. 
     As described above, in accordance with the guitar teaching data creation device  22  according to the first embodiment, the difficult-to-understand mechanism on the fingerboard can be grasped mathematically from bird&#39;s eyes, and such teaching-oriented data, which is necessary to enhance the skill for the fingering on the fingerboard, the fingering being the most difficult for the guitarists, can be created. In such a way, there can be further provided: the guitar teaching system including the guitar teaching data creation device  22  according to the first embodiment; the guitar teaching data creation method using the guitar teaching data creation device  22  according to the first embodiment; and the guitar teaching data creation program for actuating the guitar teaching data creation device  22  according to the first embodiment. 
     (Modification Example of First Embodiment) 
     In a similar way to the configuration illustrated in  FIG. 1 , a guitar teaching system according to a modification example of the first embodiment of the present invention includes: a guitar for teaching (teaching-oriented guitar: training guitar)  11 ; an interface  21   a  connected to the teaching-oriented guitar  11  via a wire  32 ; a guitar teaching data creation device  22  connected to the interface  21   a  via a wire  35 ; a monitor (display device)  23   a  connected to the guitar teaching data creation device  22  via a wire  37 ; and a piano keyboard-type keyboard  15  such as a MIDI keyboard connected to the interface  21   a  via a wire  34 . The teaching-oriented guitar  11  and the piano keyboard-type keyboard  15  are connected to each other via a wire  33 . Moreover, a headphone  16   a  is connected to the teaching-oriented guitar  11  via a wire  31 , and a headphone  16   b  is connected to the piano keyboard-type keyboard  15  via a wire  36 . 
     However, in addition to the CPU  220   a  having: the chord inputting means  221  for executing processing for receive chords; the distribution map creating means  222  for creating a distribution map of respective sounds of the chords by collating the respective sounds with sound addresses on a fingerboard of the teaching-oriented guitar  11 ; sequence creating means  223  for creating sequences from the distribution map created by the distribution map creating means  222 ; numerical diagram creating means  224  for creating numerical diagrams of respective combinations from the sequences created by the sequence creating means  223 , graphic converting means  225  for converting the numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics; and display means  226  for prioritizing all of the graphics of the numerical diagrams converted by the graphic converting means  225 , and transmitting a signal to display the graphics while arranging the graphics, all of the means being illustrated in  FIG. 1 , the guitar teaching system according to the modification example further includes a score-deriving central processing unit (CPU)  220   b , and can convert diagrams as illustrated in  FIG. 30A  into musical notes as illustrated in  FIG. 30B . 
     As illustrated in  FIG. 28 , the score-deriving CPU  220   b  is a processor including: diagram inputting means  231  for receiving the diagrams, which are as illustrated in  FIG. 30A  and are created by the CPU  220   a;  address number display converting means  232  for converting position coordinates of respective dots of the diagrams, which are received by the diagram inputting means  231 , individually into numerical (integer value) display of addresses; address English letter display converting means  233  for further converting the numerical display of the addresses, which are converted by the address number display converting means  232 , into English display of the addresses; musical note converting means  234  for converting the English letter display, which is converted by the address English letter display converting means  233 , into the musical notes as illustrated in  FIG. 30B ; and display means  236  for transmitting a signal to display the musical notes converted by the musical note converting means  234 . The diagram inputting means  231 , the address number display converting means  232 , the address English letter display converting means  233 , the musical note converting means  234  and the display means  236 , which are illustrated in  FIG. 28 , are also drive-controlled by the guitar teaching data creation program stored in the program storage device, and the guitar teaching data for use in the guitar teaching system according to the modification example of the first embodiment is created. 
     &lt;Score Derivation Method&gt; 
     A description is made of a score derivation method according to the modification example of the first embodiment of the present invention by using a flowchart of  FIG. 29 , and using  FIGS. 30A and 30B  to  FIGS. 34A and 34B . Note that the score derivation method to be described below is merely an example, and as a matter of course, is realizable by a variety of creation methods other than this method, the variety of creation methods including modification examples of this method. 
     (A) First, the guitar teaching data creation program stored in the program storage device (not illustrated) connected to the guitar teaching data creation device  22  illustrated in  FIG. 28  is started. Then, the guitar teaching data creation program drives the diagram inputting means  231  of the score-deriving CPU  220   b  that composes the guitar teaching data creation device  22  illustrated in  FIG. 28 , and receives the diagrams, which are created by the CPU  220   a , in Step S 201 . The diagrams received by the diagram inputting means  231  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (B) Next, in Step S 202 , the guitar teaching data creation program causes the address number display converting means  232  of the score-deriving CPU  220   b  illustrated in  FIG. 28  to read out the diagrams, which are received in Step S 201 , from the data storage device, and by using the data in which position coordinates of the sounds on the fingerboard, which are illustrated in  FIG. 7 , are caused to correspond to the integer values of 1 to 156, converts position coordinates of respective dots of the diagrams, which are illustrated in  FIG. 31A , individually into numerical display of addresses, as illustrated in  FIG. 31B , and converts position coordinates of respective dots of the diagrams, which are illustrated in  FIG. 32A , individually into numerical display of addresses, as illustrated in  FIG. 32B . Such numerical displays of the addresses, which are as illustrated in  FIG. 31B  and  FIG. 32B  and are created by the address number display converting means  232 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (C) Then, in Step S 203 , the guitar teaching data creation program causes the address English letter display converting means  233  of the score-deriving CPU  220   b  to read out the numerical display of the addresses, which is converted in Step S 202 , from the data storage device, and causes the data of the English letter display of the sound addresses on the fingerboard, which are illustrated in  FIG. 5 , and the data, in which the sound position coordinates illustrated in  FIG. 7  are caused to correspond to the integer values, to correspond to each other, and makes conversion from the numerical display of the addresses, which is converted by the address number display converting means  232 , into the English letter display of the addresses.  FIG. 5  illustrates, by the English letter display, the sound positions on the fingerboard of the six-string guitar in the case where the number of frets is 25. The address English letter display converting means  233  converts the numerical display of the addresses, which is illustrated in  FIG. 31B , into the English letter display of the addresses, which is illustrated in  FIG. 33A , and converts the numerical display of the addresses, which is illustrated in  FIG. 32B , into the English letter display of the addresses, which is illustrated in  FIG. 33B . The data of the English letter display of the sound addresses on the fingerboard as illustrated in  FIG. 33A  and  FIG. 33B , which are converted by the address English letter display converting means  233 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (D) Moreover, in Step S 204 , the guitar teaching data creation program causes the musical note converting means  234  of the score-deriving CPU  220   b  to read out the data of the English letter display of the addresses, as illustrated in  FIG. 33A  and  FIG. 33B , and converts the readout data individually into musical notes, as illustrated in  FIG. 35A  and  FIG. 35B , based on a correspondence relationship between the data of the English letter display of the sound addresses on the fingerboard, which are illustrated in  FIG. 5 , and the sound positions on the staff notation, which are illustrated in  FIG. 6 . As a result, the data of the English letter display of the sound addresses, which are illustrated in  FIG. 34A , is converted into musical notes of  FIG. 34B , and the data of the English letter display of the sound addresses, which are illustrated in  FIG. 35A , is converted into musical notes of  FIG. 35B . The musical notes converted by the musical note converting means  234  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (E) Though not illustrated in the flowchart of  FIG. 29 , the guitar teaching data creation program subsequently causes the display means  236  of the score-deriving CPU  220   b  to read out the musical notes, which are converted in Step S 204 , from the data storage device, and transmits a signal to display the graphics of the diagrams on the screen of the monitor  23   a.  As a result, the musical notes as illustrated in  FIG. 34B  and  FIG. 35B  are displayed on the screen of the monitor  23   a.    
     &lt;Guitar Teaching Data Creation Program&gt; 
     Such a series of the processing for executing the score derivation method according to the modification example of the first embodiment, which is illustrated in  FIG. 29 , can derive the score if the CPU  220   a  illustrated in  FIG. 1  is controlled by the guitar teaching data creation program with an algorithm equivalent to that of  FIG. 29 . As already mentioned, this guitar teaching data creation program just needs to be stored in the program storage device of the computer system that composes the CPU  220   b  according to the modification example of the first embodiment. Moreover, this program is stored in the computer-readable recording medium, and the program storage device of the CPU  220   b  is caused to read this recording medium, whereby a series of the processing of the guitar teaching data creation method according to the score derivation method can be executed. Furthermore, it is possible to store the guitar teaching data creation program according to the score derivation method in the program storage device via an information processing network such as the Internet. 
     (Second Embodiment) 
     Though the entire system is not illustrated again, in a substantially similar way to the configuration illustrated in  FIG. 1 , a guitar teaching system according to a second embodiment of the present invention includes: a guitar for teaching (teaching-oriented guitar: training guitar)  11 ; an interface  21   a  connected to the teaching-oriented guitar  11  via a wire  32 ; a guitar teaching data creation device  22  connected to the interface  21   a  via a wire  35 ; a monitor (display device)  23   a  connected to the guitar teaching data creation device  22  via a wire  37 ; and a piano keyboard-type keyboard  15  such as a MIDI keyboard connected to the interface  21   a  via a wire  34 . The teaching-oriented guitar  11  and the piano keyboard-type keyboard  15  are connected to each other via a wire  33 . Moreover, a headphone  16   a  is connected to the teaching-oriented guitar  11  via a wire  31 , and a headphone  16   b  is connected to the piano keyboard-type keyboard  15  via a wire  36 . 
     As illustrated in  FIG. 38 , the guitar teaching data creation device  22  is a processor including a central processing unit (CPU)  220   c  having: chord inputting means  221  for executing processing for receiving chords; distribution map creating means  222  for creating a distribution map of respective sounds of the chords, which are received by the chord inputting means  221 , by collating the respective sounds with sound addresses on a fingerboard of the teaching-oriented guitar  11 ; sequence creating means  223  for creating sequences (combinations) from the distribution map created by the distribution map creating means  222 ; numerical diagram creating means  224  for creating numerical diagrams (address diagrams) of respective combinations from the sequences created by the sequence creating means  223 ; graphic converting means  225  for converting the numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics; display means  226  for giving a definition to prioritize all of the numerical diagrams converted into the graphics by the graphic converting means  225 , determining highest-priority diagrams, and transmitting a signal to display the highest-priority diagrams while arranging the highest-priority diagrams; and duplicate address excluding means  227  for extracting data while excluding data of a sound of a duplicate address in a case where an address of a sound of a voice part located above when viewed from BASS is on the same string, and storing the extracted data of the address. Here, the duplicate address excluding means  227  may be a hardware resource as an internal structure of the sequence creating means  223 , or may be a hardware resource that operates in cooperation with the sequence creating means  223 , the hardware resource serving as a hardware resource as an external structure of the sequence creating means  223 . In a case where the duplicate address excluding means  227  functions as an internal structure of the sequence creating means  223 , the CPU  220   c  according to the second embodiment is substantially equal to the CPU  220   a  of the guitar teaching system according to the first embodiment. 
     In a similar way to the guitar teaching system according to the first embodiment, the guitar teaching data creation device  22  according to the second embodiment can be realized by a computer system such as a PC. In a case where the guitar teaching data creation device  22  is composed of a PC, the monitor  23   a  illustrated in  FIG. 1  may be built in the guitar teaching data creation device  22 , or may be composed integrally with the guitar teaching data creation device  22 . Moreover, though not illustrated, in a similar way to the guitar teaching system according to the first embodiment, a program storage device and a data storage device are connected to or built in the guitar teaching data creation device  22  according to the second embodiment of the present invention. Hence, a guitar teaching data creation program for drive-controlling the chord inputting means  221 , the distribution map creating means  222 , the sequence creating means  223 , the numerical diagram creating means  224 , the graphic converting means  225 , the display means  226  and the duplicate address excluding means  227 , which are illustrated in  FIG. 38 , and causing these means to create guitar teaching data for use in the guitar teaching system according to the second embodiment just needs to be stored in a program storage device of a computer system that composes the guitar teaching data creation device  22 . 
     Meanwhile, varieties of input/output data and parameters, which are necessary for guitar teaching data creation, data under computation, and the like, can be stored in the data storage device. In the data storage device, there are also stored: data as illustrated in  FIGS. 41A, 42A and 43A , which indicate sound positions on the fingerboard by the English letter display; data as illustrated in  FIGS. 41B, 42B and 43B , in which the sound positions on the fingerboard are converted into the integer values of 1 to 156; data as illustrated in  FIGS. 41C, 42C and 43C , in which the data converted into the integer values are listed to lateral sequences; and the like. Then, the guitar teaching data creation program according to the second embodiment of the present invention is stored in a computer-readable external recording medium, and the program storage device of the guitar teaching data creation device  22  is caused to read a content recorded in the external recording medium, whereby the guitar teaching data creation program concerned can execute a series of the processing of the guitar teaching data creation of the present invention. The guitar teaching data creation device  22  according to the second embodiment of the present invention is configurable of computer system such as a PC, and accordingly, illustration thereof is omitted. However, the guitar teaching data creation device  22  may further include input devices such as a PC keyboard, a mouse, and a light pen. This fact or other configurations such as the structure of the teaching-oriented guitar  11  are substantially similar to those of the guitar teaching system according to the first embodiment, and accordingly, a duplicate description is omitted. 
     In the case where the address of the sound of the voice part located above when viewed from BASS is located on the same string, then based on such distribution maps as illustrated in  FIGS. 41A, 42A and 43A  created by the distribution map creating means  222 , the duplicate address excluding means  227  that composes the guitar teaching data creation device  22  of the guitar teaching system according to the second embodiment excludes the data of the sound of the duplicate address as below in accordance with a command of the guitar teaching data creation program, which is stored in the program storage device, and sequentially stores the extracted data in the data storage device. Note that the term “root” also appears in the following description; however, as already mentioned, strictly, should be described as “BASS”. However, for sake of convenience, the description is made while using the term “root”. 
     (a) First, from BASS  22 ,  53 ,  84  of the distribution map of  FIG. 41A , that is, while taking the third-fret F 2 = 22 , the eighth-fret F 2 = 53  and the 13th-fret F 2 = 84  as roots, TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120  are searched. First, in a case where the third-fret F 2 = 22  is taken as the root, then from lateral sequence lists of  FIG. 41C , TENOR  58  is on the sequence list of D in the same way as BASS  22 , and is arrayed on the same string as that of BASS  22 , and accordingly, it is impossible to touch TENOR  58 . Hence, TENOR  58  is deleted, and TENOR  2 ,  27 ,  89 ,  120  are extracted with respect to BASS  22 . TENOR  2 ,  27 ,  89 ,  120 , which are thus extracted, are stored in the data storage device connected to the guitar teaching data creation device  22 . In a similar way, in a case where the eighth-fret F 2 = 53  is taken as the root, then from the lateral sequence lists of  FIG. 41C , TENOR  89  is on the sequence list of E in the same way as BASS  53 , and is arrayed on the same string as that of BASS  53 , and accordingly, it is impossible to touch TENOR  89 . Hence, TENOR  89  is deleted, and TENOR  2 ,  27 ,  58 ,  120  are extracted with respect to BASS  53 . TENOR  2 ,  27 ,  58 ,  120 , which are thus extracted, are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, in a case where the 13th-fret F 2 = 84  is taken as the root, then from the lateral sequence lists of  FIG. 41C , TENOR  120  is on the sequence list of F in the same way as BASS  84 , and is arrayed on the same string as that of BASS  84 , and accordingly, it is impossible to touch TENOR  120 . Hence, TENOR  120  is deleted, and TENOR  2 ,  27 ,  58 ,  89  are extracted with respect to BASS  84 . TENOR  2 ,  27 ,  58 ,  89 , which are thus extracted, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (b) Here, the processing returns to the case where TENOR  2 ,  27 ,  89 ,  120  are extracted while taking the third-fret F 2 = 22  as the root. That is to say, TENOR  2  is focused, and ALTO  20 ,  45 ,  76 ,  107 ,  138  are searched from TENOR  2  of the distribution map of  FIG. 42A . From the lateral sequence lists of  FIG. 42C , ALTO  20  is on the sequence list of B in the same way as TENOR  2 , ALTO  76  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  2  and BASS  22 , and accordingly, it is impossible to touch ALTO  20  and ALTO  76 . Hence, ALTO  20  and  76  are deleted, and ALTO  45 ,  107 ,  138  are extracted with respect to TENOR  2  as shown in Table 1. 
     
       
         
           
               
               
               
             
               
                 TABLE 1 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 2 
                 45 
               
               
                 22 
                 2 
                 107 
               
               
                 22 
                 2 
                 138 
               
               
                   
               
            
           
         
       
     
     ALTO  45 ,  107 ,  138  extracted as shown in Table 1 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, the third-fret F 2 = 22  is taken as a root, TENOR  27  in a case where TENOR  2 ,  27 ,  89 ,  120  are extracted is focused, and ALTO  20 ,  45 ,  76 ,  107 ,  138  are searched from TENOR  27  of the distribution map of FIG.  42 A. From the lateral sequence lists of  FIG. 42C , ALTO  45  is on the sequence list of C in the same way as TENOR  27 , ALTO  76  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  27  and BASS  22 , and accordingly, it is impossible to touch ALTO  45  and ALTO  76 . Hence, ALTO  45  and  76  are deleted, and ALTO  20 ,  107 ,  138  are extracted with respect to TENOR  27  as shown in Table 2. 
     
       
         
           
               
               
               
             
               
                 TABLE 2 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 27 
                 20 
               
               
                 22 
                 27 
                 107 
               
               
                 22 
                 27 
                 138 
               
               
                   
               
            
           
         
       
     
     ALTO  20 ,  107 ,  138  extracted as shown in Table 2 are stored in the data storage device (not illustrated) connected to the guitar teaching data creation device  22 . Moreover, the third-fret F 2 = 22  is taken as a root, TENOR  89  in the case where TENOR  2 ,  27 ,  89 ,  120  are extracted is focused, and ALTO  20 ,  45 ,  76 ,  107 ,  138  are searched from TENOR  89  of the distribution map of  FIG. 42A . From the lateral sequence lists of  FIG. 42C , ALTO  107  is on the sequence list of E in the same way as TENOR  89 , ALTO  76  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  89  and BASS  22 , and accordingly, it is impossible to touch ALTO  107  and ALTO  76 . Hence, ALTO  107  and  76  are deleted, and ALTO  20 ,  45 ,  138  are extracted with respect to TENOR  89  as shown in Table 3. 
     
       
         
           
               
               
               
             
               
                 TABLE 3 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 89 
                 20 
               
               
                 22 
                 89 
                 45 
               
               
                 22 
                 89 
                 138 
               
               
                   
               
            
           
         
       
     
     ALTO  20 ,  45 ,  138  extracted as shown in Table 3 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, the third-fret F 2 = 22  is taken as a root, TENOR  120  in the case where TENOR  2 ,  27 ,  89 ,  120  are extracted is focused, and ALTO  20 ,  45 ,  76 ,  107 ,  138  are searched from TENOR  120  of the distribution map of  FIG. 42A . From the lateral sequence lists of  FIG. 42C , ALTO  138  is on the sequence list of F in the same way as TENOR  120 , ALTO  76  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  120  and BASS  22 , and accordingly, it is impossible to touch ALTO  138  and ALTO  76 . Hence, ALTO  138  and ALTO  76  are deleted, and ALTO  20 ,  45 ,  107  are extracted with respect to TENOR  120  as shown in Table 4. 
     
       
         
           
               
               
               
             
               
                 TABLE 4 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 120 
                 20 
               
               
                 22 
                 120 
                 45 
               
               
                 22 
                 120 
                 107 
               
               
                   
               
            
           
         
       
     
     ALTO  20 ,  45 ,  107  extracted as shown in Table 4 are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (c) Next, the third-fret F 2 = 22  is taken as a root, TENOR  2 ,  27 ,  89 ,  120  are extracted, and moreover, the processing returns to the case where ALTO  45 ,  107 ,  138  are extracted with respect to TENOR  2  as shown in Table 1. First, ALTO  45  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  45  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  87  is on the sequence list of C in the same way as ALTO  45 , SOPRANO  62  is on the sequence list of B in the same way as TENOR  2 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  45 , TENOR  2  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  87 ,  118 . Hence, SOPRANO  62 ,  87 ,  118  are deleted, and SOPRANO  31 ,  149  are extracted with respect to ALTO  45  as shown in Table 5. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 5 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 22 
                 2 
                 45 
                 31 
               
               
                   
                 22 
                 2 
                 45 
                 149 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  149  extracted as shown in Table 5 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 1, ALTO  107  in the case where ALTO  45 ,  107 ,  138  are extracted with respect to TENOR  2  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  107  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  149  is on the sequence list of E in the same way as ALTO  107 , SOPRANO  62  is on the sequence list of B in the same way as TENOR  2 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  107 , TENOR  2  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  149 ,  62 ,  118 . Hence, SOPRANO  149 ,  62 ,  118  are deleted, and SOPRANO  31 ,  87  are extracted with respect to ALTO  107  as illustrated in Table 6. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 6 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 2 
                 107 
                 31 
               
               
                   
                 22 
                 2 
                 107 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  87  extracted as shown in Table 6 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 1, ALTO  138  in the case where ALTO  45 ,  107 ,  138  are extracted with respect to TENOR  2  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  138  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  62  is on the sequence list of B in the same way as TENOR  2  SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  2  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  118 . Hence, SOPRANO  62 ,  118  are deleted, and SOPRANO  31 ,  87 ,  149  are extracted with respect to ALTO  138  as shown in Table 7. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 7 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 22 
                 2 
                 138 
                 31 
               
               
                   
                 22 
                 2 
                 138 
                 87 
               
               
                   
                 22 
                 2 
                 138 
                 149 
               
               
                   
                   
               
            
           
         
       
     
     ALTO  31 ,  87 ,  149  extracted as shown in Table 7 are stored in the data storage device connected to the guitar teaching data creation device  22 . In an inside of the data storage device, the data of Tables 5 to 7 are automatically summarized, formed into such data as in Table 8, and are stored. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 8 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 A 
                 22 
                 2 
                 45 
                 31 
               
               
                 B 
                 22 
                 2 
                 45 
                 149 
               
               
                 C 
                 22 
                 2 
                 107 
                 31 
               
               
                 D 
                 22 
                 2 
                 107 
                 87 
               
               
                 E 
                 22 
                 2 
                 138 
                 31 
               
               
                 F 
                 22 
                 2 
                 138 
                 87 
               
               
                 G 
                 22 
                 2 
                 138 
                 149 
               
               
                   
               
            
           
         
       
     
     (d) Next, the third-fret F 2 = 22  is taken as a root, TENOR  2 ,  27 ,  89 ,  120  are extracted, and moreover, the processing returns to the case where ALTO  20 ,  107 ,  138  are extracted with respect to TENOR  27  as shown in Table 2. First, ALTO  20  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  20  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  62  is on the sequence list of B in the same way as ALTO  20 , SOPRANO  87  is on the sequence list of C in the same way as TENOR  27 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  20 , TENOR  27  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  87 ,  118 . Hence, SOPRANO  62 ,  87 ,  118  are deleted, and SOPRANO  31 ,  149  are extracted with respect to ALTO  20  as shown in Table 9. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 9 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 22 
                 27 
                 20 
                 31 
               
               
                   
                 22 
                 27 
                 20 
                 149 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  149  extracted as shown in Table 9 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 2, ALTO  107  in the case where ALTO  20 ,  107 ,  138  are extracted with respect to TENOR  27  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  107  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  149  is on the sequence list of B in the same way as ALTO  107 , SOPRANO  87  is on the sequence list of C in the same way as TENOR  27  SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  107 , TENOR  27  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  149 ,  87 ,  118 . Hence, SOPRANO  149 ,  87 ,  118 , are deleted, and SOPRANO  31 ,  62  are extracted with respect to ALTO  107  as shown in Table 10. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 10 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 27 
                 107 
                 31 
               
               
                   
                 22 
                 27 
                 107 
                 62 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62  extracted as shown in Table 10 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 2, ALTO  138  in the case where ALTO  20 ,  107 ,  138  are extracted with respect to TENOR  28  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  138  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  87  is on the sequence list of C in the same way as TENOR  27 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  27  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  87 ,  118 . Hence, SOPRANO  87 ,  118  are deleted, and as shown in Table 11, SOPRANO  31 ,  62 ,  149  are extracted with respect to ALTO  138 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 11 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 22 
                 27 
                 138 
                 31 
               
               
                   
                 22 
                 27 
                 138 
                 62 
               
               
                   
                 22 
                 27 
                 138 
                 149 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  149  extracted as shown in Table 11 are stored in the data storage device connected to the guitar teaching data creation device  22 . In the inside of the data storage device, the data of Tables 9 to 11 are automatically summarized, formed into such data as in Table 12, and are stored. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 12 
               
               
                   
               
               
                   
                 BASS  
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 H 
                 22 
                 27 
                 20 
                 31 
               
               
                 I 
                 22 
                 27 
                 20 
                 149 
               
               
                 J 
                 22 
                 27 
                 107 
                 31 
               
               
                 K 
                 22 
                 27 
                 107 
                 62 
               
               
                 L 
                 22 
                 27 
                 138 
                 31 
               
               
                 M 
                 22 
                 27 
                 138 
                 62 
               
               
                 N 
                 22 
                 27 
                 138 
                 149 
               
               
                   
               
            
           
         
       
     
     (e) Next, TENOR  2 ,  27 ,  89 ,  120  are extracted while taking the third-fret F 2 = 22  as a root, and further, as shown in Table 3, the processing returns to the case where ALTO  20 ,  45 ,  138  are extracted with respect to TENOR  89 . First, ALTO  20  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  20  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  62  is on the sequence list of B in the same way as ALTO  20 , SOPRANO  149  is on the sequence list of E in the same way as TENOR  89 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  20 , TENOR  89  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  149 ,  118 . Hence, SOPRANO  62 ,  149 ,  118  are deleted, and as shown in Table 13, SOPRANO  31 ,  87  are extracted with respect to ALTO  20 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 13 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 89 
                 20 
                 31 
               
               
                   
                 22 
                 89 
                 20 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  87  extracted as shown in Table 13 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 3, ALTO  45  in the case where ALTO  20 ,  45 ,  138  are extracted with respect to TENOR  89  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  45  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  87  is on the sequence list of C in the same way as ALTO  45 , SOPRANO  149  is on the sequence list of E in the same way as TENOR  89 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  45 , TENOR  89  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  149 ,  87 ,  118 . Hence, SOPRANO  149 ,  87 ,  118  are deleted, and as shown in Table 14, SOPRANO  31 ,  62  are extracted with respect to ALTO  45 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 14 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 89 
                 45 
                 31 
               
               
                   
                 22 
                 89 
                 45 
                 62 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62  extracted as shown in Table 14 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 3, ALTO  138  in the case where ALTO  20 ,  45 ,  138  are extracted with respect to TENOR  89  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  138  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  149  is on the sequence list of E in the same way as TENOR  89 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  89  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  149 ,  118 . Hence, SOPRANO  149 ,  118  are deleted, and as shown in Table 15, SOPRANO  31 ,  62 ,  87  are extracted with respect to ALTO  138 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 15 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 89 
                 138 
                 31 
               
               
                   
                 22 
                 89 
                 138 
                 62 
               
               
                   
                 22 
                 89 
                 138 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  87  extracted as shown in Table 15 are stored in the data storage device connected to the guitar teaching data creation device  22 . In the inside of the data storage device, the data of Tables 13 to 15 are automatically summarized, formed into such data as in Table 16, and are stored. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 16 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 O 
                 22 
                 89 
                 20 
                 31 
               
               
                 P 
                 22 
                 89 
                 20 
                 87 
               
               
                 Q 
                 22 
                 89 
                 107 
                 31 
               
               
                 R 
                 22 
                 89 
                 107 
                 62 
               
               
                 S 
                 22 
                 89 
                 138 
                 31 
               
               
                 T 
                 22 
                 89 
                 138 
                 62 
               
               
                 U 
                 22 
                 89 
                 138 
                 87 
               
               
                   
               
            
           
         
       
     
     (f) Next, TENOR  2 ,  27 ,  89 ,  120  are extracted while taking the third-fret F 2 = 22  as a root, and further, as shown in Table 4, the processing returns to the case where ALTO  20 ,  45 ,  107  are extracted with respect to TENOR  120 . First, ALTO  20  is focused, and SOPRANO,  62 ,  87 ,  118 ,  149  are searched from ALTO  20  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  62  is on the sequence list of B in the same way as ALTO  20 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of ALTO  20  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  118 . Hence, SOPRANO  62 ,  118  are deleted, and as shown in Table 17, SOPRANO  31 ,  87 ,  149  are extracted with respect to ALTO  20 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 17 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 22 
                 120 
                 20 
                 31 
               
               
                   
                 22 
                 120 
                 20 
                 87 
               
               
                   
                 22 
                 120 
                 20 
                 149 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  87 ,  149  extracted as shown in Table 17 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 4, ALTO  45  in the case where ALTO  20 ,  45 ,  107  are extracted with respect to TENOR  120  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  45  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  87  is on the sequence list of C in the same way as ALTO  45 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of ALTO  45  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  87 ,  118 . Hence, SOPRANO  87 ,  118  are deleted, and as shown in Table 18, SOPRANO  31 ,  62 ,  149  are extracted with respect to ALTO  45 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 18 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 22 
                 120 
                 45 
                 31 
               
               
                   
                 22 
                 120 
                 45 
                 62 
               
               
                   
                 22 
                 120 
                 45 
                 149 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  149  extracted as shown in Table 18 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 4, ALTO  107  in the case where ALTO  20 ,  45 ,  107  are extracted with respect to TENOR  120  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  107  of the distribution map of  FIG. 43A . From the lateral sequence lists of  FIG. 43C , SOPRANO  149  is on the sequence list of E in the same way as ALTO  107 , SOPRANO  118  is on the sequence list of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of ALTO  107  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  149 ,  118 . Hence, SOPRANO  149 ,  118  are deleted, and as shown in Table 19, SOPRANO  31 ,  62 ,  87  are extracted with respect to ALTO  107 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 19 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 120 
                 107 
                 31 
               
               
                   
                 22 
                 120 
                 107 
                 62 
               
               
                   
                 22 
                 120 
                 107 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  87  extracted as shown in Table 19 are stored in the data storage device connected to the guitar teaching data creation device  22 . In the inside of the data storage device, the data of Tables 17 to 19 are automatically summarized, formed into such data as in Table 20, and are stored. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 20 
               
               
                   
                   
               
               
                   
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 V 
                 22 
                 120 
                 20 
                 31 
               
               
                   
                 W 
                 22 
                 120 
                 20 
                 87 
               
               
                   
                 X 
                 22 
                 120 
                 20 
                 149 
               
               
                   
                 Y 
                 22 
                 120 
                 45 
                 31 
               
               
                   
                 Z 
                 22 
                 120 
                 45 
                 62 
               
               
                   
                 a 
                 22 
                 120 
                 45 
                 149 
               
               
                   
                 b 
                 22 
                 120 
                 107 
                 31 
               
               
                   
                 c 
                 22 
                 120 
                 107 
                 62 
               
               
                   
                 d 
                 22 
                 120 
                 107 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     Moreover, in the inside of the data storage device, the data of Tables 8, 12, 16, 20 are automatically summarized, and in the case where the third-fret F 2 = 22  is taken as a root, are formed into such 30 data as in Table 21, and are stored. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 21 
               
               
                   
                   
               
               
                   
                   
                 BASS  
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 A 
                 22 
                 2 
                 45 
                 31 
               
               
                   
                 B 
                 22 
                 2 
                 45 
                 149 
               
               
                   
                 C 
                 22 
                 2 
                 107 
                 31 
               
               
                   
                 D 
                 22 
                 2 
                 107 
                 87 
               
               
                   
                 E 
                 22 
                 2 
                 138 
                 31 
               
               
                   
                 F 
                 22 
                 2 
                 138 
                 87 
               
               
                   
                 G 
                 22 
                 2 
                 138 
                 149 
               
               
                   
                 H 
                 22 
                 27 
                 20 
                 31 
               
               
                   
                 I 
                 22 
                 27 
                 20 
                 149 
               
               
                   
                 J 
                 22 
                 27 
                 107 
                 31 
               
               
                   
                 K 
                 22 
                 27 
                 107 
                 62 
               
               
                   
                 L 
                 22 
                 27 
                 138 
                 31 
               
               
                   
                 M 
                 22 
                 27 
                 138 
                 62 
               
               
                   
                 N 
                 22 
                 27 
                 138 
                 149 
               
               
                   
                 O 
                 22 
                 89 
                 20 
                 31 
               
               
                   
                 P 
                 22 
                 89 
                 20 
                 87 
               
               
                   
                 Q 
                 22 
                 89 
                 107 
                 31 
               
               
                   
                 R 
                 22 
                 89 
                 107 
                 62 
               
               
                   
                 S 
                 22 
                 89 
                 138 
                 31 
               
               
                   
                 T 
                 22 
                 89 
                 138 
                 62 
               
               
                   
                 U 
                 22 
                 89 
                 138 
                 87 
               
               
                   
                 V 
                 22 
                 120 
                 20 
                 31 
               
               
                   
                 W 
                 22 
                 120 
                 20 
                 87 
               
               
                   
                 X 
                 22 
                 120 
                 20 
                 149 
               
               
                   
                 Y 
                 22 
                 120 
                 45 
                 31 
               
               
                   
                 Z 
                 22 
                 120 
                 45 
                 62 
               
               
                   
                 a 
                 22 
                 120 
                 45 
                 149 
               
               
                   
                 b 
                 22 
                 120 
                 107 
                 31 
               
               
                   
                 c 
                 22 
                 120 
                 107 
                 62 
               
               
                   
                 d 
                 22 
                 120 
                 107 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     In a similar way, in a case where the eighth-fret F 2 = 53  is taken as a root, such 30 data as in Table 22 are stored in the inside of the data storage device. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 22 
               
               
                   
                   
               
               
                   
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 A 
                 53 
                 2 
                 45 
                 31 
               
               
                   
                 B 
                 53 
                 2 
                 45 
                 118 
               
               
                   
                 C 
                 53 
                 2 
                 76 
                 31 
               
               
                   
                 D 
                 53 
                 2 
                 76 
                 87 
               
               
                   
                 E 
                 53 
                 2 
                 138 
                 31 
               
               
                   
                 F 
                 53 
                 2 
                 138 
                 87 
               
               
                   
                 G 
                 53 
                 2 
                 138 
                 118 
               
               
                   
                 H 
                 53 
                 27 
                 20 
                 31 
               
               
                   
                 I 
                 53 
                 27 
                 20 
                 118 
               
               
                   
                 J 
                 53 
                 27 
                 76 
                 31 
               
               
                   
                 K 
                 53 
                 27 
                 76 
                 62 
               
               
                   
                 L 
                 53 
                 27 
                 138 
                 31 
               
               
                   
                 M 
                 53 
                 27 
                 138 
                 62 
               
               
                   
                 N 
                 53 
                 27 
                 138 
                 118 
               
               
                   
                 O 
                 53 
                 89 
                 20 
                 31 
               
               
                   
                 P 
                 53 
                 89 
                 20 
                 87 
               
               
                   
                 Q 
                 53 
                 89 
                 45 
                 31 
               
               
                   
                 R 
                 53 
                 89 
                 45 
                 62 
               
               
                   
                 S 
                 53 
                 89 
                 138 
                 31 
               
               
                   
                 T 
                 53 
                 89 
                 138 
                 62 
               
               
                   
                 U 
                 53 
                 89 
                 138 
                 87 
               
               
                   
                 V 
                 53 
                 120 
                 20 
                 31 
               
               
                   
                 W 
                 53 
                 120 
                 20 
                 87 
               
               
                   
                 X 
                 53 
                 120 
                 20 
                 118 
               
               
                   
                 Y 
                 53 
                 120 
                 45 
                 31 
               
               
                   
                 Z 
                 53 
                 120 
                 45 
                 62 
               
               
                   
                 a 
                 53 
                 120 
                 45 
                 118 
               
               
                   
                 b 
                 53 
                 120 
                 76 
                 31 
               
               
                   
                 c 
                 53 
                 120 
                 76 
                 62 
               
               
                   
                 d 
                 53 
                 120 
                 76 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     Moreover, in a similar procedure, in a case where the 13th-fret F 2 = 84  is taken as a root, such 34 data as in Table 23 are stored in the inside of the data storage device. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 23 
               
               
                   
                   
               
               
                   
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 A 
                 84 
                 2 
                 45 
                 31 
               
               
                   
                 B 
                 84 
                 2 
                 45 
                 118 
               
               
                   
                 C 
                 84 
                 2 
                 45 
                 149 
               
               
                   
                 D 
                 84 
                 2 
                 76 
                 31 
               
               
                   
                 E 
                 84 
                 2 
                 76 
                 87 
               
               
                   
                 F 
                 84 
                 2 
                 76 
                 149 
               
               
                   
                 G 
                 84 
                 2 
                 107 
                 31 
               
               
                   
                 H 
                 84 
                 2 
                 107 
                 87 
               
               
                   
                 I 
                 84 
                 2 
                 107 
                 118 
               
               
                   
                 J 
                 84 
                 27 
                 20 
                 31 
               
               
                   
                 K 
                 84 
                 27 
                 20 
                 87 
               
               
                   
                 L 
                 84 
                 27 
                 20 
                 118 
               
               
                   
                 M 
                 84 
                 27 
                 20 
                 149 
               
               
                   
                 N 
                 84 
                 27 
                 76 
                 31 
               
               
                   
                 O 
                 84 
                 27 
                 76 
                 62 
               
               
                   
                 P 
                 84 
                 27 
                 76 
                 149 
               
               
                   
                 Q 
                 84 
                 27 
                 107 
                 31 
               
               
                   
                 R 
                 84 
                 27 
                 107 
                 62 
               
               
                   
                 S 
                 84 
                 27 
                 107 
                 118 
               
               
                   
                 T 
                 84 
                 58 
                 20 
                 31 
               
               
                   
                 U 
                 84 
                 58 
                 20 
                 149 
               
               
                   
                 V 
                 84 
                 58 
                 45 
                 31 
               
               
                   
                 W 
                 84 
                 58 
                 45 
                 62 
               
               
                   
                 X 
                 84 
                 58 
                 45 
                 118 
               
               
                   
                 Y 
                 84 
                 58 
                 45 
                 149 
               
               
                   
                 Z 
                 84 
                 89 
                 20 
                 31 
               
               
                   
                 a 
                 84 
                 89 
                 20 
                 87 
               
               
                   
                 b 
                 84 
                 89 
                 20 
                 118 
               
               
                   
                 c 
                 84 
                 89 
                 45 
                 31 
               
               
                   
                 d 
                 84 
                 89 
                 45 
                 62 
               
               
                   
                 e 
                 84 
                 89 
                 45 
                 118 
               
               
                   
                 f 
                 84 
                 89 
                 76 
                 31 
               
               
                   
                 g 
                 84 
                 89 
                 76 
                 62 
               
               
                   
                 h 
                 84 
                 89 
                 76 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     As described above, the duplicate address excluding means  227  that composes the guitar teaching data creation device  22  of the guitar teaching system according to the second embodiment functions as the internal structure of the sequence creating means  223 , or operates in cooperation with the sequence creating means  223 . Thereby, in the case where such addresses of the sounds of the voice parts located above when viewed from BASS are on the same strings, duplicate address excluding means  227  excludes the data of the sounds of the duplicate addresses based on the distribution map created by the distribution map creating means  222 , and sequentially stores the data of the sounds of the extracted addresses in the data storage device. As a result, as a sum total of the data in the cases where the third-fret F 2 = 22 , the eighth-fret F 2 = 53  and the 13th-fret F 2 = 84  are taken as roots, data of 94 sequences (combinations of address data), which are as shown in Table 21 to Table 23, can be finally obtained. 
     &lt;Guitar Teaching Data Creation Method&gt; 
     A description is made of a guitar teaching data creation method according to the second embodiment of the present invention by using the flowchart of  FIG. 39  and using  FIG. 40  and  FIGS. 54A and 54H . Note that the guitar teaching data creation method to be described below is merely an example, and as a matter of course, is realizable by a variety of creation methods other than this method, the variety of creation methods including modification examples of this method. 
     (A) First, the guitar teaching data creation program stored in the program storage device connected to the guitar teaching data creation device  22  illustrated in  FIG. 38  is started. Then, the guitar teaching data creation program drives the chord inputting means  221  of the CPU  220   c  that composes the guitar teaching data creation device  22  illustrated in  FIG. 38 , and receives the chords in Step S 301 . Here, in the guitar teaching data creation program stored in the program storage device, an application program that displays a staff notation similar to that in usual music production software is included. Hence, the staff notation is displayed on a screen of a monitor similar to the monitor illustrated in  FIG. 1  by using the guitar teaching data creation program, and the guitar teaching data creation program causes the chord inputting means  221  to sequentially receive the chords as illustrated in  FIG. 40  by using electrical signals generated by clicking the mouse to the staff notation on the screen of the monitor. The chords received by the chord inputting means  221  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (B) Next, in Step S 302 , the guitar teaching data creation program causes the distribution map creating means  222  of the CPU  220   c  illustrated in  FIG. 38  to read out, from the data storage device, the data which are illustrated in  FIGS. 41A, 42A and 43A  and indicate the sound positions on the fingerboard by English letter display, and the chord received in Step S 301 . Then, the data of the addresses of the respective sounds of  FIGS. 41A, 42A and 43A  and the chords received by the chord inputting means  221  are collated with each other, and the distribution maps of the respective sounds are created on  FIGS. 41A, 42A and 43A . In  FIGS. 41A, 42A and 43A , as the distribution maps of the respective sounds, the addresses in the English letter display, which correspond to SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149 , ALTO D 2 = 20 ,  45 ,  76 ,  107 ,  138 , TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120 , and BASS F 2 = 22 ,  53 ,  84 , are illustrated while being encircled, and the other addresses in the English letter display are not illustrated for the purpose of making the distribution maps easy to see. The distribution maps as illustrated in  FIGS. 41A, 42A and 43A , which are created by the distribution map creating means  222 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (c) Then, in Step S 303 , the guitar teaching data creation program causes the duplicate address excluding means  227  of the central processing unit  220   c  to read out, from the data storage device, the data as illustrated in  FIGS. 41B, 42B and 43B , in which the sound positions on the fingerboard are converted into the integer values of 1 to 156, the data as illustrated in  FIGS. 41C, 42C and 43C , in which the data converted into the integer values are listed to the lateral sequences, and the distribution maps created in Step S 302 . Then, the duplicate address excluding means  227  functions as the internal structure of the sequence creating means  223 , or operates in cooperation with the sequence creating means  223 . Thereby, in the case where the addresses of the sounds of the voice parts located above when viewed from BASS are on the same strings, the duplicate address excluding means  227  excludes the data of the sounds of the duplicate addresses, and performs the extraction. That is to say, in the case where the addresses of the sounds of the voice parts located above when viewed from BASS, the addresses being composed of the third-fret F 2 = 22 , the eighth-fret F 2 = 53 , and the 13th-fret F 2 = 84 , are on the same string, then based on the distribution maps created by the distribution map creating means  222 , the duplicate address excluding means  227  excludes the data of the sound of the duplicate address, and stores the data of the sounds of the extracted addresses sequentially in the data storage device, and can thereby store the data of the 94 sequences (combinations of address data), which are as shown in Table 21 to Table 23, finally in Step S 304 . 
     (D) Moreover, in Step S 305 , the guitar teaching data creation program causes the numerical diagram creating means  224  of the central processing unit  220   c  to read out the 94 sequences, which are created in Steps S 303  and S 304 , from the data storage device, and by using the data of the integer values of 1 to 156, which are as illustrated in  FIGS. 41B, 42B  and  43 B, converts (expresses) the 94 sequences, which are created by the duplicate address excluding means  227  and the sequence creating means  223 , into 94 numerical diagrams, and creates the 94 numerical diagram (creates numerical diagrams similar to the numerical diagrams exemplified in  FIGS. 23A to 23I  and  FIGS. 24J to 24Q ). The 94 numerical diagrams created by the numerical diagram creating means  224  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (E) Moreover, in Step S 306 , the guitar teaching data creation program causes the graphic converting means  225  of the central processing unit  220   c  to read out data (refer to the first embodiment) for converting the respective positions of the numerical diagram into X-Y coordinates as illustrated in  FIG. 10  and the 94 numerical diagrams, which are created in Step S 305 , from the data storage device. Then, by using the data for converting the numerical diagrams into the X-Y coordinates, which are similar to those illustrated in  FIG. 10 , the graphic converting means  225  converts the 94 numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics of diagrams composed of arrays of dots. The cases where the eighth-fret F 2 = 53  and the 13th-fret F 2 = 84  are taken as roots are not illustrated; however, in the case where the third-fret F 2 = 22  is taken as a root, the numerical diagrams are converted into 30 graphics of  FIGS. 44A to 44J  to  FIGS. 46A to 46J  in response to 30 sequences of A to Z and a to d. In this event, in a similar way to the first embodiment, a circle is filled in each region where the inequality of circle defined by Expression (1) prescribes the value of the X-Y coordinate=(a,b) of each numeral, the value being expressed in the numerical diagram, whereby the dot is drawn. That is to say, a circle, which takes the X-Y coordinate=(a,b) is as a center, is defined, and by such dots obtained by filling the circles, the numerical diagrams are expressed as the graphics of the diagrams composed of the arrays of the dots, which are as illustrated in  FIGS. 44A to 44J  to  FIGS. 46A to 46J , whereby the diagrams are created. The graphics of the 94 diagrams, which are converted by the graphic converting means  225 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (F) In the case where the third-fret F 2 = 22  is taken as a root, then the fourth-string root is defined as illustrated in  FIG. 47B . Moreover, in the case where the eighth-fret F 2 = 53  is taken as a root, then as illustrated in  FIG. 47B , the fifth-string root is defined, and in the case where the 13th fret F 2 = 84  is taken as a root, the sixth-string root is defined. In Step S 307 , the guitar teaching data creation program causes the display means  226  of the CPU  220   c  to read out the graphics of the 94 diagrams, which are displayed by the arrays of the dots in Step S 306 , from the data storage device, and prioritizes all of the graphics (diagrams) converted by the graphic converting means  225 . Such a determination of the orders of priority in Step S 307  depends on eleven Sound ranges I to XI. Details of how to prioritize the graphics by Sound ranges I to XI will be described later (a specific description thereof is made in the last of the description of the second embodiment while illustrating eleven Sound ranges I to XI in  FIGS. 55A and 55B  to  FIGS. 65A and 65B ). Here, a case is exemplarily described, where, in accordance with Steps S 401  and S 402 , which are illustrated in  FIG. 47A , screening according to the number of frets is performed, priority is given to a case where the number of frets covers the third fret, the fifth fret and the seventh fret, and as a first bylaw, order of the roots are determined in such an order as “fifth-string root”→“sixth-string root”→“fourth-string root”. That is to say, in Step S 401 , it is determined whether the number of frets is the third fret, the fifth fret and the seventh fret, and in a case where the number of frets is the third fret, the fifth fret and the seventh fret, the processing proceeds to Step S 403 . In a case where it is determined in Step S 401  that the number of frets is not the third fret, the fifth fret and the seventh fret, the processing proceeds to Step S 402 . In such a way, in the case where the number of frets is not the third fret, the fifth fret and the seventh fret, the number of frets is enclosed into one group in Step S 402 . A reason for giving highest priority to the procedure of determining the fifth-string root in Step S 403  in the procedure from Step S 403  to S 405  is that, for guitarists, it is a basis to cover four voice parts which are SOPRANO, ALTO, TENOR and BASS by four strings which are the firth string to the second string. Next, priority is given to the procedure of determining the sixth-string root in Step S 404 . In a case where there is a musical instrument that can emit BASS in an ensemble or the like, the fourth-string root in Step S 405  is effective; however, the order of priority thereof is low in usual. When the orders of priority are determined in accordance with the first bylaw illustrated in Steps S 403  to S 405 , then the roots are arrayed as illustrated in  FIGS. 48A to 48C . A second bylaw by which the display means  226  determines the orders of priority is to array the roots in order where the number of frets is small. A third bylaw by which the display means  226  determines the orders of priority is to give priority to one in which strings for use are arranged from a low-tone side in a case where the number of frets for use is the same. A fourth bylaw by which the display means  226  determines the orders of priority is to display the number of displayed diagrams while limiting the number thereof, for example, five by five. In Step S 308 , in accordance with such orders of priority, which are determined by the first bylaw to the fourth bylaw, the signal to display the graphics of the diagrams on the screen of the monitor and the fingerboard on the upper surface of the neck  122  is transmitted. As a result, in Step S 308 , moreover, the graphics of the 94 diagrams are sequentially displayed on the screen of the monitor and the fingerboard in accordance with the orders of priority, which are determined by the display means  226 . 
     &lt;Case of Taking Open Strings as BASS&gt; 
     There is a case of using open strings (lowest note) E 1 , A 1 , D 1 , G 2 , B 2 , E 3  on the 0 fret at a time of playing the guitar. The open strings have such features in sounding well when being used as BASS, being effective when being used as organ points, facilitating position movement when the movement is required in scale and arpeggio, enabling eccentric voicing of the chords, and the like. Frequently used open strings include “E, A, D, G, B, E” and “D, A, D, G, B, E”, in which the string is tuned down by one note. Each of the chords is sometimes caused to omit a root thereof, and is displayed by NR in this case. In the case where a root is omitted, the sound over thereof is defined as a root. A description is made below on the assumption that the staff notation is displayed on a screen of a monitor similar to the monitor illustrated in  FIG. 1 , and the mouse is clicked to the staff notation on the screen of the monitor, and a chord that takes the open string A 1 = 5  as a root is inputted by the chord inputting means  221  as illustrated in  FIG. 49 . 
     (a) First, TENOR F 2 = 16 ,  47 ,  78  are searched from BASS  5 ,  30  in a distribution map of  FIG. 50A , that is, while taking A 1 = 5  of the open string of the 0 fret and A 1 = 30  of the fourth fret as roots. Here, in a case where the A 1 = 5  of the open string of the 0 fret is taken as a root, then from lateral sequence lists of  FIG. 50C , TENOR  47  is on such a sequence list of E in the same way as BASS  5 , and is arrayed on the same string as that of BASS  5 , and accordingly, it is impossible to touch TENOR  47 . Hence, TENOR  47  is deleted, and TENOR  16 ,  78  are extracted with respect to BASS  5 . 
     (b) Next, TENOR  16  is focused, and ALTO  8 ,  33 ,  64 ,  95 ,  126  are searched from TENOR  16  of the distribution map of  FIG. 51A . From the lateral sequence lists of  FIG. 51C , ALTO  64  is on the sequence list of D in the same way as TENOR  16 , ALTO  95  is on the sequence list of E in the same way as BASS  5 , and both of them are arrayed on the same strings as those of TENOR  16  and BASS  5 , and accordingly, it is impossible to touch ALTO  64 ,  95 . Hence, ALTO  64 ,  95  are deleted, and as shown in Table 24, ALTO  8 ,  33 ,  126  are extracted with respect to TENOR  16 . 
     
       
         
           
               
               
               
             
               
                 TABLE 24 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 5 
                 16 
                 8 
               
               
                 5 
                 16 
                 33 
               
               
                 5 
                 16 
                 126 
               
               
                   
               
            
           
         
       
     
     ALTO  8 ,  33 ,  126  extracted as shown in Table 24 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, TENOR  78  is focused, and ALTO  8 ,  33 ,  64 ,  95 ,  126  are searched from TENOR  78  of the distribution map of  FIG. 51A . From the lateral sequence lists of  FIG. 51C , ALTO  126  is on the sequence list of F in the same way as TENOR  78 , ALTO  95  is on the sequence list of E in the same way as BASS  5 , and both of them are arrayed on the same strings as those of TENOR  78  and BASS  5 , and accordingly, it is impossible to touch ALTO  126 ,  95 . Hence, ALTO  126 ,  95  are deleted, and as shown in Table 25, ALTO  8 ,  33 ,  64  are extracted with respect to TENOR  78 . 
     
       
         
           
               
               
               
             
               
                 TABLE 25 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 5 
                 78 
                 8 
               
               
                 5 
                 78 
                 33 
               
               
                 5 
                 78 
                 64 
               
               
                   
               
            
           
         
       
     
     ALTO  8 ,  33 ,  64  extracted as shown in Table 25 are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (c) Next, TENOR  16 ,  78  are extracted while taking the A 1 = 5  of the open string on the 0 fret as a root, and further, as shown in Table 24, the processing returns to the case where ALTO  20 ,  33 ,  126  are extracted with respect to TENOR  16 . First, ALTO  8  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  8  of the distribution map of  FIG. 52A . From the lateral sequence lists of  FIG. 52C , SOPRANO  62  is on the sequence list of B in the same way as ALTO  8 , SOPRANO  118  is on the sequence list of D in the same way as TENOR  16 , SOPRANO  149  is on the sequence list of E in the same way as BASS  5 , and all of them are arrayed on the same strings as those of ALTO  8 , TENOR  16  and BASS  5 , and accordingly, it is impossible to touch SOPRANO  62 ,  118 ,  149 . Hence, SOPRANO  62 ,  118 ,  149  are deleted, and as shown in Table 26, SOPRANO  31 ,  87  are extracted with respect to ALTO  8 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 26 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 5 
                 16 
                 8 
                 31 
               
               
                   
                 5 
                 16 
                 8 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  87  extracted as shown in Table 26 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 24, ALTO  33  in the case where ALTO  8 ,  33 ,  126  are extracted with respect to TENOR  16  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  33  of the distribution map of  FIG. 52A . From the lateral sequence lists of  FIG. 52C , SOPRANO  87  is on the sequence list of C in the same way as ALTO  33 , SOPRANO  118  is on the sequence list of D in the same way as TENOR  16 , SOPRANO  149  is on the sequence list of E in the same way as BASS  5 , and all of them are arrayed on the same strings as those of ALTO  33 , TENOR  16  and BASS  5 , and accordingly, it is impossible to touch SOPRANO  87 ,  118 ,  149 . Hence, SOPRANO  87 ,  118 ,  149  are deleted, and as shown in Table 27, SOPRANO  31 ,  62  are extracted with respect to ALTO  33 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 27 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 5 
                 16 
                 33 
                 31 
               
               
                   
                 5 
                 16 
                 33 
                 62 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62  extracted as shown in Table 27 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 24, ALTO  126  in the case where ALTO  8 ,  33 ,  126  are extracted with respect to TENOR  16  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  126  of the distribution map of  FIG. 52A . From the lateral sequence lists of  FIG. 52C , SOPRANO  118  is on the sequence list of D in the same way as TENOR  16 , SOPRANO  149  is on the sequence list of E in the same way as BASS  5 , and both of them are arrayed on the same strings as those of TENOR  16  and BASS  5 , and accordingly, it is impossible to touch SOPRANO  149 ,  118 . Hence, SOPRANO  149 ,  118  are deleted, and as shown in Table 28, SOPRANO  31 ,  62 ,  87  are extracted with respect to ALTO  126 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 28 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 5 
                 16 
                 126 
                 31 
               
               
                   
                 5 
                 16 
                 126 
                 62 
               
               
                   
                 5 
                 16 
                 126 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  87  extracted as shown in Table 28 are stored in the data storage device connected to the guitar teaching data creation device  22 . In the inside of the data storage device, the data of Tables 26 to 28 are automatically summarized, formed into such data as in Table 29, and are stored. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 29 
               
               
                   
                   
               
               
                   
                   
                 BASS  
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 A 
                 5 
                 16 
                 8 
                 31 
               
               
                   
                 B 
                 5 
                 16 
                 8 
                 87 
               
               
                   
                 C 
                 5 
                 16 
                 33 
                 31 
               
               
                   
                 D 
                 5 
                 16 
                 33 
                 62 
               
               
                   
                 E 
                 5 
                 16 
                 126 
                 31 
               
               
                   
                 F 
                 5 
                 16 
                 126 
                 62 
               
               
                   
                 G 
                 5 
                 16 
                 126 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     (d) Next, TENOR  16 ,  78  are extracted while taking the A 1 = 5  of the open string on the 0 fret as a root, and further, as shown in Table 25, the processing returns to the case where ALTO  8 ,  33 ,  64  are extracted with respect to TENOR  78 . First, ALTO  8  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  8  of the distribution map of  FIG. 52A . From the lateral sequence lists of  FIG. 52C , SOPRANO  62  is on the sequence list of B in the same way as ALTO  8 , SOPRANO  149  is on the sequence list of E in the same way as BASS  5 , and both of them are arrayed on the same strings as those of ALTO  8  and BASS  5 , and accordingly, it is impossible to touch SOPRANO  62 ,  149 . Hence, SOPRANO  62 ,  149  are deleted, and as shown in Table 30, SOPRANO  31 ,  87 ,  118  are extracted with respect to ALTO  8 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 30 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 5 
                 78 
                 8 
                 31 
               
               
                   
                 5 
                 78 
                 8 
                 87 
               
               
                   
                 5 
                 78 
                 8 
                 118 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  87 ,  118  extracted as shown in Table 30 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 25, ALTO  33  in the case where ALTO  8 ,  33 ,  64  are extracted with respect to TENOR  78  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  33  of the distribution map of  FIG. 52A . From the lateral sequence lists of  FIG. 52C , SOPRANO  87  is on the sequence list of C in the same way as ALTO  87 , SOPRANO  149  is on the sequence list of E in the same way as BASS  5 , and both of them are arrayed on the same strings as those of ALTO  33  and BASS  5 , and accordingly, it is impossible to touch SOPRANO  149 ,  87 . Hence, SOPRANO  149 ,  87  are deleted, and as shown in Table 31, SOPRANO  31 ,  62 ,  118  are extracted with respect to ALTO  33 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 31 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 5 
                 78 
                 33 
                 31 
               
               
                   
                 5 
                 78 
                 33 
                 62 
               
               
                   
                 5 
                 78 
                 33 
                 118 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  118  extracted as shown in Table 31 are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, as shown in Table 25, ALTO  64  in the case where ALTO  8 ,  33 ,  64  are extracted with respect to TENOR  78  is focused, and SOPRANO  31 ,  62 ,  87 ,  118 ,  149  are searched from ALTO  64  of the distribution map of  FIG. 52A . From the lateral sequence lists of  FIG. 52C , SOPRANO  118  is on the sequence list of D in the same way as ALTO  64 , SOPRANO  149  is on the sequence list of E in the same way as BASS  5 , and both of them are arrayed on the same strings as those of ALTO  64  and BASS  5 , and accordingly, it is impossible to touch SOPRANO  118 ,  149 . Hence, SOPRANO  149 ,  118  are deleted, and as shown in Table 32, SOPRANO  31 ,  62 ,  87  are extracted with respect to ALTO  64 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 32 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
                 5 
                 78 
                 64 
                 31 
               
               
                   
                 5 
                 78 
                 64 
                 62 
               
               
                   
                 5 
                 78 
                 64 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     SOPRANO  31 ,  62 ,  87  extracted as shown in Table 32 are stored in the data storage device connected to the guitar teaching data creation device  22 . In the inside of the data storage device, the data of Tables 30 to 32 are automatically summarized, formed into such data as in Table 33, and are stored. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 33 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 H 
                 5 
                 78 
                 8 
                 31 
               
               
                 I 
                 5 
                 78 
                 8 
                 87 
               
               
                 J 
                 5 
                 78 
                 8 
                 118 
               
               
                 K 
                 5 
                 78 
                 33 
                 31 
               
               
                 L 
                 5 
                 78 
                 33 
                 62 
               
               
                 M 
                 5 
                 78 
                 33 
                 118 
               
               
                 N 
                 5 
                 78 
                 64 
                 31 
               
               
                 O 
                 5 
                 78 
                 64 
                 62 
               
               
                 P 
                 5 
                 78 
                 64 
                 87 
               
               
                   
               
            
           
         
       
     
     In the inside of the data storage device, the data of Tables 29 to 33 are automatically summarized, formed into such 16 data of A to P as in Table 34, and are stored. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 34 
               
               
                   
               
               
                   
                 BASS 
                 TENOR  
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 A 
                 5 
                 16 
                 8 
                 31 
               
               
                 B 
                 5 
                 16 
                 8 
                 87 
               
               
                 C 
                 5 
                 16 
                 33 
                 31 
               
               
                 D 
                 5 
                 16 
                 33 
                 62 
               
               
                 E 
                 5 
                 16 
                 126 
                 31 
               
               
                 F 
                 5 
                 16 
                 126 
                 62 
               
               
                 G 
                 5 
                 16 
                 126 
                 87 
               
               
                 H 
                 5 
                 78 
                 8 
                 31 
               
               
                 I 
                 5 
                 78 
                 8 
                 87 
               
               
                 J 
                 5 
                 78 
                 8 
                 118 
               
               
                 K 
                 5 
                 78 
                 33 
                 31 
               
               
                 L 
                 5 
                 78 
                 33 
                 62 
               
               
                 M 
                 5 
                 78 
                 33 
                 118 
               
               
                 N 
                 5 
                 78 
                 64 
                 31 
               
               
                 O 
                 5 
                 78 
                 64 
                 62 
               
               
                 P 
                 5 
                 78 
                 64 
                 87 
               
               
                   
               
            
           
         
       
     
     As described above, in the case where the addresses of the sounds of the voice parts located above when viewed from BASS, the addresses being composed of such a 0-fret open-string A 1 = 5  and the 4th-fret A 1 = 30 , are on the same string, then based on the distribution maps created by the distribution map creating means  222 , the duplicate address excluding means  227  excludes the data of the sound of the duplicate address, and stores the data of the sounds of the extracted addresses sequentially in the data storage device, and can thereby store the data of the 16 sequences finally. Thereafter, in Step S 305  of the flowchart illustrated in  FIG. 39 , the numerical diagram creating means  224  of the CPU  220   c  reads out the 16 sequences from the data storage device, and by using the data of the integer values as illustrated in  FIGS. 50B, 51B and 52B , converts (expresses) the 16 sequences into 16 numerical diagrams, and creates the 16 numerical diagram. The 16 numerical diagrams created by the numerical diagram creating means  224  are stored in the data storage device connected to the guitar teaching data creation device  22 . Moreover, in Step S 306  of the flowchart illustrated in  FIG. 39 , the graphic converting means  225  of the CPU  220   c  reads out data for converting the respective positions of the numerical diagram into X-Y coordinates as illustrated in  FIG. 10  and the 16 numerical diagrams, which are created in Step S 305 , from the data storage device. Then, by using the data for converting the numerical diagrams, which indicate the positions of the sounds on the fingerboard, into the X-Y coordinates, the graphic converting means  225  converts the 16 numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics of diagrams composed of arrays of dots. That is to say, the numerical diagrams are converted into 16 graphics of  FIGS. 53A to 53H  and  FIGS. 54A to 54H  corresponding to the 16 sequences of A to Pin Table 34. In this event, in a similar way to the first embodiment, each circle is filled in each region prescribed by the inequality of circle defined by Expression (1), whereby the dot is drawn. The graphics of the 16 diagrams, which are converted by the graphic converting means  225 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Then, in Step S 307  of the flowchart illustrated in  FIG. 39 , the display means  226  of the CPU  220   c  reads out the graphics of the 16 diagrams, which are displayed by the arrays of the dots in Step S 306 , from the data storage device, and prioritizes all of the graphics (diagrams) converted by the graphic converting means  225 . That is to say, in the case where the open string is a root, then in the determination of the orders of priority, it is a most important bylaw to array the graphics not in order of “fifth-string root”→“sixth-string root”→“fourth-string root” in the first bylaw but “in order where the number of frets for use is smaller” in the second bylaw. In the above-described example, both of Table 26 and Table 28 use frets up to the fifth fret, and orders of display are determined in order of Table 28→Table 27→Table 26 in accordance with the third bylaw “in the case where the number of frets for use is the same, priority is given to one in which the strings for use are arrayed from below”. Then, in Step S 308  of the flowchart illustrated in  FIG. 39 , the 16 graphics are displayed on the screen of the monitor and the fingerboard sequentially in order of Table 28→Table 27→Table 26. 
     Relationship Between Sound Range and Order of Priority 
     (I) As illustrated on a staff notation of  FIG. 55A , sounds of E 1  to Ab 1 , which are surrounded by a bold solid line of  FIGS. 55A and 55B , are defined as sounds included in “Sound range I”.  FIG. 55B  is English letter display data in which the positions of the sounds on the fingerboard of the six-string guitar are converted into the integer values, wherein integer value conversion data of the sounds of E 1  to Ab 1 , which are included in a sound range of one spot on the fingerboard, are surrounded by a bold solid line, whereby Sound range I is displayed. 
     
       
         
           
               
               
               
               
               
               
               
               
             
               
                 TABLE 35 
               
               
                   
               
               
                 SOUND 
                   
                   
                   
                   
                   
                   
                   
               
               
                 RANGE 
                 FIRST PRIORITY 
                   
                 SECOND PRIORITY 
                   
                 THIRD PRIORITY 
                   
                 FOURTH PRIORITY 
               
               
                   
               
             
            
               
                 I 
                 ONLY SIXTH-STRING ROOT 
                   
                   
                   
                   
                   
                   
               
               
                 II 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 SIXTH-STRING ROOT 
                   
                   
                   
                   
               
               
                 III 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 SIXTH-STRING ROOT 
                   
                   
               
               
                 IV 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 THIRD-STRING ROOT 
                 
                   
                 
                 SIXTH-STRING ROOT 
               
               
                 V 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 THIRD-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 SEVENTH-STRING ROOT 
               
               
                 VI 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 THIRD-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 EIGHTH-STRING ROOT 
               
               
                 VII 
                 THIRD-STRING ROOT 
                 
                   
                 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                   
                   
               
               
                 VIII 
                 THIRD-STRING ROOT 
                 
                   
                 
                 FOURTH-STRING ROOT 
                   
                   
                   
                   
               
               
                 IX 
                 ONLY THIRD-STRING ROOT 
                   
                   
                   
                   
                   
                   
               
               
                 X 
                 NONE 
                   
                   
                   
                   
                   
                   
               
               
                 XI 
                 NONE 
               
               
                   
               
            
           
         
       
     
     In Steps S 307  and Step S 308  in  FIG. 39 , an order of priority, by which Sound range I illustrated in  FIG. 55  is displayed, takes only the sixth-string root as shown in Table 35 in the case of the three-part body. Moreover, also in the case of the four-part body, the order of priority, by which Sound range I as shown in Table 36 is displayed, takes only the sixth-string root. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
               
               
                 SOUND 
                 FIRST  
                   
                 SECOND  
                   
                 THIRD  
               
               
                 RANGE 
                 PRIORITY 
                   
                 PRIORITY 
                   
                 PRIORITY 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 I 
                 ONLY SIXTH-STRING 
                   
                   
                   
                   
               
               
                   
                 ROOT 
                   
                   
                   
                   
               
               
                 II 
                 FIFTH-STRING ROOT  
                 
                   
                 
                 SIXTH-STRING ROOT 
                   
                   
               
               
                 III 
                 FIFTH-STRING ROOT  
                 
                   
                 
                 SIXTH-STRING ROOT 
                 
                   
                 
                 FOURTH-STRING ROOT 
               
               
                 IV 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 SIXTH-STRING ROOT 
               
               
                 V 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 SIXTH-STRING ROOT 
               
               
                 VI 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                 
                   
                 
                 SIXTH-STRING ROOT 
               
               
                 VII 
                 FOURTH-STRING ROOT 
                 
                   
                 
                 FIFTH-STRING ROOT 
                   
                   
               
               
                 VIII 
                 ONLY FOURTH-STRING 
                 
                   
                 
                   
                   
                   
               
               
                   
                 ROOT 
                   
                   
                   
                   
               
               
                 IX 
                 NONE 
                   
                   
                   
                   
               
               
                 X 
                 NONE 
                   
                   
                   
                   
               
               
                 XI 
                 NONE 
                   
                   
                   
                   
               
               
                   
               
            
           
         
       
     
     (II) As illustrated in  FIG. 56A , Sound range II is a sound range adjacent to a right side (high-tone side) of “Sound range I” on a staff notation, and includes sounds of A 1  to Db 1 , the sounds being surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 56B , integer value conversion data of the sounds of A 1  to Db 1 , which are individually included in the sound ranges at two spots on the fingerboard of the six-string guitar, are surrounded by a bold solid line, whereby Sound range II is illustrated. In Steps S 307  and Step S 308 , an order of priority, by which Sound range II illustrated in  FIGS. 56A and 56B  is displayed, becomes an order of the fifth-string root→the sixth-string root as shown in Table 35 in the case of the three-part body. Moreover, also in the case of the four-part body, the order of priority, by which Sound range II as shown in Table 36 is displayed, becomes the order of the fifth-string root→the sixth-string root. 
     (III) As illustrated on a staff notation of  FIG. 57A , “Sound range III” adjacent to a right side (high-tone side) of “Sound range II” is a sound range including sounds of D 1  to Gb 1 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 57B , integer value conversion data of the sounds of D 1  to Gb 1 , which are individually included in the sound ranges at three spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range III is illustrated. An order of priority, by which Sound range III illustrated in  FIGS. 57A and 57B  is displayed, becomes an order of the fifth-string root→the fourth-string root→the sixth-string root as shown in Table 35 in the case of the three-part body. Meanwhile, in the case of the four-part body, the order of priority, by which Sound range III as shown in Table 36 is displayed, becomes an order of the fifth-string root→the sixth-string root→the fourth-string root. 
     (IV) As illustrated on a staff notation of  FIG. 58A , “Sound range IV” adjacent to a high-tone side of “Sound range III” is a sound range including sounds of G 2  to B 2 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 58B , integer value conversion data of the sounds of G 2  to B 2 , which are individually included in the sound ranges at four spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range IV is illustrated. An order of priority, by which Sound range IV illustrated in  FIGS. 58A and 58B  is displayed, becomes an order of the fourth-string root→the fifth-string root→the third-string root→the sixth-string root as shown in Table 35 in the case of the three-part body. Meanwhile, in the case of the four-part body, the order of priority, by which Sound range IV as shown in Table 36 is displayed, becomes an order of the fourth-string root→the fifth-string root→the sixth-string root. 
     (V) As illustrated on a staff notation of  FIG. 59A , “Sound range V” adjacent to a high-tone side of “Sound range IV” is a sound range including sounds of B 2  to Eb 2 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 59B , integer value conversion data of the sounds of B 2  to Eb 2 , which are individually included in the sound ranges at five spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range V is illustrated. An order of priority, by which Sound range V illustrated in  FIGS. 59A and 59B  is displayed, becomes an order of the fourth-string root→the third-string root→the fifth-string root→the sixth-string root as shown in Table 35 in the case of the three-part body. Meanwhile, in the case of the four-part body, the order of priority, by which Sound range V as shown in Table 36 is displayed, becomes an order of the fourth-string root→the fifth-string root→the sixth-string root. 
     (VI) As illustrated on a staff notation of  FIG. 60A , “Sound range VI” adjacent to a high-tone side of “Sound range V” is a sound range including sounds of E 3  to F 3 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 60B , integer value conversion data of the sounds of E 3  to F 3 , which are individually included in the sound ranges at six spots on the fingerboard, are surrounded by bold solid lines, whereby Sound range VI is illustrated. An order of priority, by which Sound range VI illustrated in  FIGS. 60A and 60B  is displayed, becomes an order of the fourth-string root→the third-string root→the fifth-string root→the sixth-string root as shown in Table 35 in the case of the three-part body. Meanwhile, in the case of the four-part body, the order of priority, by which Sound range VI as shown in Table 36 is displayed, becomes an order of the fourth-string root→the fifth-string root→the sixth-string root. 
     As illustrated on a staff notation of  FIG. 61A , “Sound range VII” adjacent to a high-tone side of “Sound range VI” is a sound range including sounds of F# 3  to Bb 3 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 61B , integer value conversion data of the sounds of F# 3  to Bb 3 , which are individually included in the sound ranges at five spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range VII is illustrated. An order of priority, by which Sound range VII illustrated in  FIGS. 61A and 61B  is displayed, becomes an order of the third-string root→the fourth-string root→the fifth-string root as shown in Table 35 in the case of the three-part body. Meanwhile, in the case of the four-part body, the order of priority, by which Sound range VII as shown in Table 36 is displayed, becomes an order of the fourth-string root→the fifth-string root. 
     (VIII) As illustrated on a staff notation of  FIG. 62A , “Sound range VIII” adjacent to a high-tone side of “Sound range VII” is a sound range including sounds of B 3  to Eb 4 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 62B , integer value conversion data of the sounds of B 3  to Eb 4 , which are individually included in the sound ranges at four spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range VIII is illustrated. An order of priority, by which Sound range VIII illustrated in  FIGS. 62A and 62B  is displayed, becomes an order of the third-string root→the fourth-string root as shown in Table 35 in the case of the three-part body. Meanwhile, in the case of the four-part body, the order of priority, by which Sound range VIII as shown in Table 36 is displayed, takes only the fourth-string root. 
     (IX) As illustrated on a staff notation of  FIG. 63A , “Sound range IX” adjacent to a high-tone side of “Sound range VIII” is a sound range including sounds of E 4  to Ab 4 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 63B , integer value conversion data of the sounds of E 4  to Ab 4 , which are individually included in the sound ranges at three spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range IX is illustrated. An order of priority, by which Sound range IX illustrated in  FIGS. 63A and 63B  is displayed, takes only the third-string root as shown in Table 35 in the case of the three-part body. However, in the case of the four-part body, there is no order of priority, by which Sound range IX is displayed as illustrated in Table 36. 
     (X) As illustrated on a staff notation of  FIG. 63A , “Sound range X” adjacent to a high-tone side of “Sound range IX” is a sound range including sounds of A 4  to C 4 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 63B , integer value conversion data of the sounds of A 4  to C 4 , which are individually included in the sound ranges at two spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range X is illustrated. In the case of the three-part body illustrated in Table 35, and in the case of the four-part body illustrated in Table 36, there is no order of priority by which Sound range X is displayed. 
     (XI) As illustrated on a staff notation of  FIG. 64A , “Sound range XI” adjacent to a high-tone side of “Sound range X” is a sound range including sounds of C# 4  to E 4 , which are surrounded by a bold solid line. In English letter display data converted into integer values of  FIG. 64B , integer value conversion data of the sounds of C# 4  to E 5 , which are individually included in the sound range at one spots on the fingerboard, are surrounded by a bold solid line, whereby Sound range XI is illustrated. In the case of the three-part body illustrated in Table 35, and in the case of the four-part body illustrated in Table 36, there is no order of priority by which Sound range XI is displayed. 
     &lt;Guitar Teaching Data Creation Program&gt; 
     Such operations of a series of the guitar teaching data creation method illustrated in  FIG. 39  can be executed by controlling the CPU  220   a , which is illustrated in  FIG. 38 , by the guitar teaching data creation program with an algorithm equivalent to that of  FIG. 39 . As already mentioned, this guitar teaching data creation program just needs to be stored in the program storage device of the computer system that composes the CPU  220   c  according to the second embodiment. Moreover, the guitar teaching data creation program according to the second embodiment is stored in the computer-readable recording medium, and the program storage device of the CPU  220   c  is caused to read this recording medium, whereby a series of the processing of the guitar teaching data creation method according to the second embodiment can be executed. Furthermore, it is possible to store the guitar teaching data creation program in the program storage device via an information processing network such as the Internet. 
     As described above, in accordance with the guitar teaching data creation device  22  according to the second embodiment, the difficult-to-understand mechanism on the fingerboard can be grasped mathematically from bird&#39;s eyes, and such teaching-oriented data, which is necessary to enhance the skill for the fingering on the fingerboard, the fingering being the most difficult for guitarists, can be created. In such a way, there can be further provided: the guitar teaching system including the guitar teaching data creation device  22  according to the second embodiment; the guitar teaching data creation method using the guitar teaching data creation device  22  according to the second embodiment; and the guitar teaching data creation program for actuating the guitar teaching data creation device  22  according to the second embodiment. 
     (Third Embodiment) 
     Though the entire system is not illustrated again, in a substantially similar way to the configuration illustrated in  FIG. 1 , a teaching system according to a third embodiment of the present invention includes: a guitar for teaching (teaching-oriented guitar: training guitar)  11 ; an interface  21   a  connected to the teaching-oriented guitar  11  via a wire  32 ; a teaching data creation device  22  connected to the interface  21   a  via a wire  35 ; a monitor (display device)  23   a  connected to the teaching data creation device  22  via a wire  37 ; and a piano keyboard-type keyboard  15  such as a MIDI keyboard connected to the interface  21   a  via a wire  34 . The teaching-oriented guitar  11  and the piano keyboard-type keyboard  15  are connected to each other via a wire  33 . Moreover, a headphone  16   a  is connected to the teaching-oriented guitar  11  via a wire  31 , and a headphone  16   b  is connected to the piano keyboard-type keyboard  15  via a wire  36  (refer to  FIG. 1 ). 
     As illustrated in  FIG. 66 , the teaching data creation device  22  is a processor including a central processing unit (CPU)  220   d  having: chord inputting means  221  for receiving chords; BASS address determining means  241  for determining addresses of BASS in accordance with a sound range table; interval selection position determining means  242  for determining selection positions of respective intervals while taking selection address tables, which are illustrated in  FIG. 81  and the like, as definitions; numerical diagram creating means  224  for creating numerical diagrams (address diagrams) from the selection positions of the respective intervals, which are determined by the interval selection position determining means  224 ; graphic converting means  225  for converting the numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics; and display means  243  for arranging the graphics, which are converted by the graphic converting means  225 , for each BASS of the respective strings and displaying the arranged graphics. 
     In a similar way to the teaching systems according to the first and second embodiments, the teaching data creation device  22  according to the third embodiment can be realized by a computer system such as a PC. In a case where the teaching data creation device  22  is composed of a PC, the monitor  23   a  illustrated in  FIG. 1  may be built in the teaching data creation device  22 , or may be composed integrally with the teaching data creation device  22 . Moreover, though not illustrated, in a similar way to the teaching systems according to the first and second embodiments, a program storage device and a data storage device are connected to or built in the teaching data creation device  22  of the third embodiment of the present invention. Hence, a teaching data creation program for drive-controlling the chord inputting means  221 , the BASS address determining means  241 , the interval selection position determining means  242 , the numerical diagram creating means  224 , the graphic converting means  225  and the display means  243 , which are illustrated in  FIG. 66 , and causing these means to create teaching data for use in the teaching system according to the third embodiment just needs to be stored in a program storage device of a computer system that composes the teaching data creation device  22 . Meanwhile, varieties of input/output data and parameters, which are necessary for teaching data creation, data under computation, and the like, can be stored in the data storage device. 
     Then, the teaching data creation program according to the third embodiment of the present invention is stored in a computer-readable external recording medium, and the program storage device of the teaching data creation device  22  is caused to read a content recorded in the external recording medium, whereby the teaching data creation program concerned can execute a series of processing of the teaching data creation of the present invention. The teaching data creation device  22  according to the third embodiment of the present invention is configurable in a PC or the like, and accordingly, illustration thereof is omitted; however, the teaching data creation device  22  may further include input devices such as a PC keyboard, a mouse, and a light pen. This fact or other configurations such as the structure of the teaching-oriented guitar  11  are substantially similar to those of the teaching system according to the first embodiment, and accordingly, a duplicate description is omitted. 
     &lt;Teaching Data Creation Method&gt; 
     A description is made of a teaching data creation method according to the third embodiment by using the flowchart of  FIG. 67 . Note that the teaching data creation method to be described below is merely an example, and as a matter of course, is realizable by a variety of creation methods other than this method, the variety of creation methods including modification examples of this method. 
     (A) First, the teaching data creation program stored in the program storage device connected to the teaching data creation device  22  illustrated in  FIG. 66  is started. Then, the teaching data creation program drives the chord inputting means  221  of the CPU  220   d  that composes the teaching data creation device  22  illustrated in  FIG. 66 , and receives the chord in Step S 501  via the input devices. Here, in the teaching data creation program stored in the program storage device, an application program that displays a staff notation similar to that in usual music production software is included. Hence, the staff notation is displayed on a screen of a monitor similar to the monitor illustrated in  FIG. 1  by using the teaching data creation program, and the teaching data creation program causes the chord inputting means  221  to sequentially receive the chords by using electrical signals generated by clicking the mouse to the staff notation on the screen of the monitor. The chords received by the chord inputting means  221 , for example, as illustrated in  FIG. 68  are stored in the data storage device connected to the teaching data creation device  22 . 
     (B) Next, in Step S 502 , the BASS address determining means  241  of the CPU  220   d  determines the addresses of BASS in accordance with sound range tables as illustrated in  FIGS. 55A and 55B  to  FIGS. 65A and 65B . The addresses of BASS are stored in the data storage device connected to the teaching data creation device  22 . Moreover, in Step S 503 , the interval selection position determining means  242  of the CPU  220   d  determines the selection positions of the respective intervals while taking the selection address tables, which are illustrated in  FIG. 81  and the like, as definitions. The determined selection positions of the respective intervals are stored in the data storage device connected to the teaching data creation device  22 .  FIG. 81  is a selection address table in a case where D 1  in Sound range III illustrated in  FIGS. 57A and 57B  is taken as the address of BASS. 
     (C) Thereafter, in Step S 504 , the numerical diagram creating means  224  of the CPU  220   d  creates the numerical diagrams (address diagrams) from the selected positions of the respective intervals, which are determined by the interval selection position determining means  242 . The numerical diagrams are stored in the data storage device connected to the teaching data creation device  22 . Moreover, in Step S 505 , the graphic converting means  225  of the CPU  220   d  converts the numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics illustrated in  FIG. 84B ,  FIG. 84C ,  FIG. 85B ,  FIG. 86B ,  FIG. 87B ,  FIG. 88B ,  FIG. 89B ,  FIG. 90B ,  FIG. 91B , and the like. The converted graphics are stored in the data storage device connected to the teaching data creation device  22 . 
     (D) Then, in Step S 506 , the display means  243  of the CPU  220   d  transmits the signal to arrange the graphics, which are converted by the graphic converting means  225 , for each BASS of the respective strings, and to display the arranged graphics. As a result, in Step S 506 , the graphics are arranged for each BASS of the respective strings on the screen of the monitor similar to that illustrated in  FIG. 1  and on the fingerboard, and are sequentially displayed thereon. 
     In accordance with the teaching data creation device  22  according to the third embodiment, the changes of the forms of the respective chords and the respective positions thereof can be clarified and displayed. As a result, guitarists can be assisted to arrange and grasp difficulty in understanding the harmonies and the mechanisms. 
     The program for converting the inputted chords into the diagrams, the program including Step S 502  to Step S 504  in  FIG. 67 , is described by using  FIG. 68  to  FIGS. 82A to 82C . Intervals between sounds of the respective chords in such a score as illustrated in  FIG. 68  are shown by accumulated sound display in which numbers are written individually into three blank squares which are as illustrated in  FIG. 69 , accumulated vertically. In  FIG. 69 , the numbers written individually into the three blank squares are the intervals between the sounds of the respective chords, that is, in each chord, are an interval between BASS and TENOR, an interval between TENOR and ALTO, and an interval between ALTO and SOPRANO. In  FIG. 68  and  FIG. 69 , a key is determined by key signatures of E flat major/C minor, and in  FIG. 70 , a whole key signature composed of three vertical lines is illustrated on a side of a treble clef. The chord in  FIG. 70  is that in a case where the interval between BASS and TENOR is 3rd, the interval between TENOR and ALTO is 3rd, and the interval between ALTO and SOPRANO is 3rd, and in the accumulated interval display, the number  3  is written individually into the three blank squares accumulated vertically. 
     As illustrated in  FIG. 71 , the chord illustrated in  FIG. 70  includes eight chords, which are major 3rd (a), minor 3rd (b), major 3rd (c), minor 3rd (d), major 3rd (e), minor 3rd (f), major 3rd (g), and minor 3rd (h). Each of the eight chords in  FIG. 71 , which are major 3rd (a), minor 3rd (b), major 3rd (c), minor 3rd (d), major 3rd (e), minor 3rd (f), major 3rd (g), and minor 3rd (h), has an accumulated interval structure illustrated in  FIGS. 72A to 72H . Such chords with the accumulated structure, which are as exemplified in  FIGS. 72A to 72H , are determined by the key signatures. For example, if the chords are major, the chords belong to seven parent keys as illustrated in  FIG. 73 , which are A, D, G, C, F, B flat and E flat. Chord numbers IV, I, V, II, VI, III, VII on a lower stage of  FIG. 73  are determined in response to A, D, G, C, F, B flat and E flat, which are the seven parent keys on an upper stage of  FIG. 73 . 
     Chords other than those illustrated on the upper stage of  FIG. 73  and that belong to the parent keys are altered chords such as a Doppel dominant, and are written on the score while being annexed with accidentals such as sharp and flat. “Doppel” stands for “double” in English, and the Doppel dominant stands for a sound having a dominant relationship with a dominant of a certain key. Those that belong to the key are referred to as “diatonic”, and those other than “diatonic” are referred to as “non-diatonic”.  FIG. 83  illustrates relationships between changes on the respective written sounds on the diatonic scale (whole tone scale) that takes C as a keynote and substantial changes thereof in the case where the chords are major. 
     The program of the teaching data creation method according to the third embodiment is premised on such a program in which the lower structure (keyboard of piano) of the conventional music production software is shifted to the fingerboard of the guitar, and first receives the key signatures of the parent keys on the upper stage of  FIG. 73  in a similar way to the conventional music production software. Hence, in the actual program of the teaching data creation method according to the third embodiment, the parent keys are determined by the key signatures as exemplified on the upper stage of  FIG. 73 . Moreover, such interval numbers between the sounds are also determined as “major”, “minor”, “perfect”, “augmented”, and “diminished”. However, a description for each key signature becomes a complicated explanation, and accordingly, a description of a principle of the teaching data creation method according to the third embodiment is simplified by using the whole key signatures as illustrated in  FIG. 74  to  FIG. 81 . 
     A description is made of a score writing method in the teaching data creation method according to the third embodiment while taking D 1  of Sound range III, which is illustrated in  FIGS. 57A and 57B , as BASS. As illustrated in  FIG. 74 , the following description is premised on that the interval between BASS and TENOR is up to 12th, that the interval between TENOR and ALTO is up to 8th, and that the interval between ALTO and SOPRANO is up to 8th (Definition Zero). Note that there is also a treatise mentioning that the interval between BASS and TENOR may be up to 14th. 
     (i) First, D 1  is taken as BASS, and TENOR sounds are individually accumulated thereon in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval, the 8th interval, the 9th interval, the 10th interval, the 11th interval and the 12th interval. Two-part bodies are thereby created, and as illustrated in  FIG. 75 , a one-dimensional table is created in which the two-part bodies are arrayed laterally. 
     (ii) Next, on the respective sounds of the two-part bodies on the one-dimensional table of  FIG. 75 , ALTO sounds are individually accumulated in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval. Three-part bodies are thereby created, and a two-dimensional matrix as illustrated in  FIG. 76  is created. A row direction (lateral direction) of the two-dimensional matrix of  FIG. 76  corresponds to the one-dimensional array of  FIG. 75 , and a column direction (longitudinal direction) of the two-dimensional matrix of  FIG. 76  corresponds to such accumulation from the 2nd to 8th intervals of the ALTO sounds. On the two-dimensional matrix of  FIG. 76 , a total of 77 (=11×7) types of three-part bodies are displayed. 
     (iii) Next, on the respective sounds of the 77 types of three-part bodies of  FIG. 76 , SOPRANO sounds are individually accumulated in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval. Four-part bodies are thereby created, and then a three-dimensional matrix can be created. Among them, in  FIG. 77 , four-part bodies in a case where the SOPRANO sounds are individually accumulated in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval on the eighth to fourteenth three-part bodies indicated by circled numbers in the second column in the column direction of the two-dimensional matrix of  FIG. 76  are partially displayed as a two-dimensional matrix. A row direction (lateral direction) of the two-dimensional matrix of  FIG. 77  corresponds to an array in the second column in the column direction, which is surrounded by a broken-line rectangle assigned with Symbol A in  FIG. 76 , and a column direction (lateral direction) of the two-dimensional matrix of  FIG. 77  corresponds to such accumulation from the 2nd to 8th intervals of the SOPRANO sounds. In a similar way, in  FIG. 78 , four-part bodies in a case where the SOPRANO sounds are individually accumulated in order of the 2nd interval, the 3rd interval, the 4th interval, the 5th interval, the 6th interval, the 7th interval and the 8th interval on the array of the three-part bodies on the fifth column in the column direction, which is surrounded by a broken-line rectangle assigned with Symbol B in the two-dimensional matrix, that is, on the twenty-second to twenty-eighth three-part bodies indicated by circled numbers in the fifth column, are partially displayed as a two-dimensional matrix. 
     A row direction (lateral direction) of the two-dimensional matrix of  FIG. 78  corresponds to the array of the fifth column in the column direction of  FIG. 76 , and a column direction (longitudinal direction) of the two-dimensional matrix of  FIG. 78  corresponds to such accumulation from the 2nd to 8th intervals of the SOPRANO sounds. The two-dimensional matrix displays of  FIG. 77  and  FIG. 78  are those which partially illustrate the three-dimensional matrix, and in actual three-dimensional matrix display, a total of 539 (=11×7×7) types of the four-part bodies are displayed. If cases of accumulating the ALTO sound by the 1st interval and the SOPRANO sound by the 1st interval are included in accordance with the definition of  FIG. 74 , then in the three-dimensional matrix display, a total of 768 (=11×8×8) types of the four-part bodies are established. 
     In the partial display by the two-dimensional matrix of  FIG. 77 , the 77 (=11×7) types of the four-part bodies of A to Z and a to w, which are written in the blank circles, and these 77 types of the four-part bodies correspond to respective frames in a table that illustrates a part thereof by example in  FIG. 79 . Each of the frames represented by an upward left diagonal line in  FIG. 79  indicates that no address is present, and indicates that the four-part body is not established.  FIG. 79  is a number table that is based on Definition I of  FIG. 81  for the case where the interval between BASS and TENOR is 3rd, the interval between TENOR and ALTO is 3rd, and the interval between ALTO and SOPRANO is 3rd, the case being located at an intersection of the second row and the second column in the table of  FIG. 77 . In  FIGS. 57A and 57B , seven sounds of D 1  to Gb 2  are illustrated as Sound range III, and also in the table of  FIG. 79 , number tables which are based on Definition I are illustrated individually for the seven sounds of D 1  to Gb 2 . 
     B, T, A, S, which are illustrated on an upper stage side of the table of  FIG. 79 , stand for BASS, TENOR, ALTO, SOPRANO, respectively. For example, with regard to the left-end sound D 1 , BASS  4 ,  35 ,  66  correspond as BASS of D 1 , and with regard to BASS  4 , it is understood that address of TENOR, ALTO, SOPRANO are not present, and that the four-part body is not accordingly established. Meanwhile, with regard to BASS  35  of D 1 , it is understood that TENOR  28  and TENOR  22  are accumulated thereon, and that ALTO  21  and ALTO  15  are accumulated on TENOR  28 . Moreover, it is understood that ALTO  15  and ALTO  9  are accumulated on TENOR  28 . Moreover, it is understood that addresses of SOPRANO  20  and SOPRANO  14  are accumulated on ALTO  21  accumulated on TENOR  28 , and that addresses of SOPRANO  14  and SOPRANO  8  are accumulated on ALTO  15  accumulated on TENOR  28 . In a similar way, it is understood that addresses of SOPRANO  20  and SOPRANO  14  correspond to ALTO  21  accumulated on TENOR  22 , and that addresses of SOPRANO  8  and SOPRANO  2  correspond to ALTO  9  accumulated on TENOR  22 . 
     Moreover, with regard to BASS  66  of D 1 , it is understood that TENOR  59  and TENOR  53  are accumulated thereon, and that ALTO  52  and ALTO  46  are accumulated on TENOR  59 . Furthermore, it is understood that ALTO  46  and ALTO  40  are accumulated on TENOR  53 . Moreover, it is understood that addresses of SOPRANO  45  and SOPRANO  39  are accumulated on ALTO  52  accumulated on TENOR  59 , and that addresses of SOPRANO  39  and SOPRANO  33  are accumulated on ALTO  46  accumulated on TENOR  59 . In a similar way, it is understood that addresses of SOPRANO  39  and SOPRANO  33  correspond to ALTO  46  accumulated on TENOR  53 , and that addresses of SOPRANO  33  and SOPRANO  27  correspond to ALTO  40  accumulated on TENOR  53 . 
     As illustrated in  FIG. 80A , the intervals between the respective strings of the guitar are set so that the sounds of the respective strings which are the sixth string to the third string can have the perfect 4th interval, that the sounds of the respective strings which are the third string and the second string can have the major 3rd interval, and that the sounds of the respective strings which are the second string and the first string can have the perfect 4th interval. Transverse lines of  FIG. 80B  indicate the first to sixth strings from the above. Accordingly, it is understood that, in  FIG. 80B , the intervals between the sixth string (E) and the fifth string (A), between the fifth string (A) and the fourth string (D), between the fourth string (D) and the third string (G), and between the second string (B) and the first string (E) are the perfect 4th intervals, and that only the interval between the third string (G) and the second string (B) is the major 3rd interval. 
     In each square (frame) of  FIG. 81 , six transverse lines indicate the first to sixth strings from the above, and vertical lines perpendicular to the transverse lines indicate frets. In an event of determining the selected positions of the respective intervals while taking, as the definition (Definition I), the selected address table illustrated in  FIG. 81  and the like by the interval selection position determining means  242 , the chord progresses by one square in the right direction in the case of sharp, and is retreated by one square in the left direction in the case of flat (Definition II). In the case of double sharp, the chord progresses by two squares in the right direction, and in the case of double flat, is retreated by one square in the left direction. 
     As described by using  FIG. 74 , in Definition Zero, the description is premised in that the interval between BASS and TENOR is up to 12th, that the interval between TENOR and ALTO is up to 8th, and that the interval between ALTO and SOPRANO is up to 8th. From the accumulated sound display in which the interval between BASS and TENOR is 6th, the interval between TENOR and ALTO is 6th, and the interval between ALTO and SOPRANO is 6th, with regard to the chord up to the accumulated sound display in which the interval between BASS and TENOR is 8th, the interval between TENOR and ALTO is 8th, and the interval between ALTO and SOPRANO is 8th, BASS selects an address thereof on the sixth string, and SOPRANO selects a position thereof on the sixth string (Definition III). 
     Moreover, in this case, as a chord annexed with Symbol (B) on a right side of  FIG. 82A , from the accumulated sound display in which the interval between BASS and TENOR is 9th, the interval between TENOR and ALTO is 6th, and the interval between ALTO and SOPRANO is 6th, with regard to the chord up to the accumulated sound display in which the interval between BASS and TENOR is 12th, the interval between TENOR and ALTO is 8th, and the interval between ALTO and SOPRANO is 8th, BASS selects the address thereof on the sixth string, ALTO selects an address thereof on the second string, and SOPRANO selects the address thereof on the first string (Definition III). Note that, on a left side of  FIG. 82A , a chord annexed with Symbol (A) corresponds to accumulated sound display in which the interval between BASS and TENOR is 6th, the interval between TENOR and ALTO is 6th, and the interval between ALTO and SOPRANO is 6th; however, in a case where the interval between ALTO and SOPRANO is 3rd, SOPRANO is necessarily located on the sixth string, and accordingly, this case is not covered by Definition III. 
       FIG. 84B  exemplarily illustrates two types of forms obtained by the teaching data creation method according to the third embodiment. That is to say, the forms that correspond to a chord of A major of the chord number IV are illustrated on a portion (B) on the left side of  FIG. 84A , and it is indicated that two types of forms in a case of taking the fifth string as BASS and a case of taking the sixth string as BASS are established.  FIG. 84C  illustrates three types of forms in a case of individually taking, as BASS, the fourth string, the fifth string and the sixth string, the forms corresponding to a chord of A major of the chord number IV illustrated on a portion (C) on the right side of  FIG. 84A . Moreover,  FIG. 85B  illustrates two types of formed in a case of taking, as BASS, the fifth string and the sixth string, the forms corresponding to a chord of the chord number I illustrated in  FIG. 85A , and  FIG. 86B  illustrates two types of formed in a case of taking, as BASS, the fifth string and the sixth string, the forms corresponding to a chord of the chord number V illustrated in  FIG. 86A . 
     In a similar way,  FIG. 87B  is a diagram illustrating an example of a result obtained by the teaching data creation method according to the third embodiment, and illustrates two types of forms that correspond to the Doppel dominant chord of the chord number II illustrated in  FIG. 87A , that is, two types of forms in the case of taking the fifth string as BASS and taking the sixth string as BASS. Moreover,  FIG. 88B  illustrates two types of formed in a case of taking, as BASS, the fifth string and the sixth string, the forms corresponding to a chord of the chord number II illustrated in  FIG. 88A . Furthermore,  FIG. 89B  illustrates two types of formed in a case of taking, as BASS, the fifth string and the sixth string, the forms corresponding to a chord of the chord number VI illustrated in  FIG. 89A ,  FIG. 90B  illustrates two types of formed in a case of taking, as BASS, the fifth string and the sixth string, the forms corresponding to a chord of the chord number III illustrated in  FIG. 90A , and  FIG. 91B  illustrates two types of formed in a case of taking, as BASS, the fifth string and the sixth string, the forms corresponding to a chord of the chord number VII illustrated in  FIG. 91A . The forms (graphics) illustrated in  FIG. 84B ,  FIG. 84C ,  FIG. 85B ,  FIG. 86B ,  FIG. 87B ,  FIG. 88B ,  FIG. 89B ,  FIG. 90B ,  FIG. 91B  and the like, are arranged for each BASS of each string on the screen of the monitor similar to that illustrated in  FIG. 1  and the fingerboard, and are sequentially displayed. 
     As described above, according to the teaching data creation device  22  according to the third embodiment, the changes of the forms of the respective chords and the positions of the sounds thereof for each chord in  FIG. 84B ,  FIG. 84C ,  FIG. 85B ,  FIG. 86B ,  FIG. 87B ,  FIG. 88B ,  FIG. 89B ,  FIG. 80B ,  FIG. 91B  or the like, can be clarified and displayed. As a result, the teaching data creation device  22  of the third embodiment can assist the guitarist to arrange and grasp the difficulty in understanding the harmonies and the mechanisms. 
     (Fourth Embodiment) 
     A guitar teaching system according to a fourth embodiment of the present invention is substantially similar to the configuration of the guitar teaching system according to a first embodiment. As shown in  FIG. 1 , a guitar teaching system according to the fourth embodiment of the present invention includes: a guitar for teaching (teaching-oriented guitar: training guitar)  11 ; an interface  21   a  connected to the teaching-oriented guitar  11  via a wire  32 ; a guitar teaching data creation device  22  connected to the interface  21   a  via a wire  35 ; a monitor (display device)  23   a  connected to the guitar teaching data creation device  22  via a wire  37 ; and a piano keyboard-type keyboard  15  such as a MIDI keyboard connected to the interface  21   a  via a wire  34 . The teaching-oriented guitar  11  and the piano keyboard-type keyboard  15  are connected to each other via a wire  33 . Moreover, a headphone  16   a  is connected to the teaching-oriented guitar  11  via a wire  31 , and a headphone  16   b  is connected to the piano keyboard-type keyboard  15  via a wire  36 . 
     The guitar teaching data creation device  22  is a processor including a central processing unit (CPU)  220   a  having: chord inputting means  221  for executing processing for receiving chords; distribution map creating means  222  for creating a distribution map of respective sounds of the chords, which are received by the chord inputting means  221 , by collating the respective sounds with sound addresses on a fingerboard of the teaching-oriented guitar  11 ; sequence creating means  223  for creating sequences (combinations) from the distribution map created by the distribution map creating means  222 ; numerical diagram creating means  224  for creating numerical diagrams (address diagrams) of respective combinations from the sequences created by the sequence creating means  223 ; graphic converting means  225  for converting the numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics; and display means  226  for giving a definition to prioritize all of the numerical diagrams converted into the graphics by the graphic converting means  225 , determining highest-priority diagrams, and transmitting a signal to display the highest-priority diagrams while arranging the highest-priority diagrams. 
     In a similar way to the guitar teaching system according to the first to third embodiments, the guitar teaching data creation device  22  according to the fourth embodiment can be realized by a computer system such as a PC. In a case where the guitar teaching data creation device  22  is composed of a PC, the monitor  23   a  illustrated in  FIG. 1  may be built in the guitar teaching data creation device  22 , or may be composed integrally with the guitar teaching data creation device  22 . Moreover, though not illustrated, in a similar way to the guitar teaching system according to the first to third embodiments, a program storage device and a data storage device are connected to or built in the guitar teaching data creation device  22  according to the fourth embodiment of the present invention. Hence, a guitar teaching data creation program for drive-controlling the chord inputting means  221 , the distribution map creating means  222 , the sequence creating means  223 , the numerical diagram creating means  224 , the graphic converting means  225 , and the display means  226 , which are illustrated in  FIG. 1 , and causing these means to create guitar teaching data for use in the guitar teaching system according to the fourth embodiment just needs to be stored in a program storage device of a computer system that composes the guitar teaching data creation device  22 . 
     Meanwhile, varieties of input/output data and parameters, which are necessary for guitar teaching data creation, data under computation, and the like, can be stored in the data storage device. In the data storage device, there are also stored: data as illustrated in  FIG. 95 , which indicate sound positions on the fingerboard by the English letter display; data as illustrated in  FIGS. 96A to 96C , which indicate sound positions on the staff notation corresponding to the data illustrated in  FIG. 95 ; data as illustrated in  FIG. 97 , in which the sound positions on the fingerboard are converted into the integer values of 1 to 156; data as illustrated in  FIG. 98 , in which the data converted into the integer values are listed to lateral sequences; data as illustrated in  FIG. 99 , in which respective positions of a numeric diagram are converted into X-Y coordinates; data of above Expression (1); and the like. 
     Then, the guitar teaching data creation program according to the fourth embodiment of the present invention is stored in a computer-readable external recording medium, and the program storage device of the guitar teaching data creation device  22  is caused to read a content recorded in the external recording medium, whereby the guitar teaching data creation program concerned can execute a series of the processing of the guitar teaching data creation of the present invention. The guitar teaching data creation device  22  according to the fourth embodiment of the present invention is configurable of computer system such as a PC, and accordingly, illustration thereof is omitted. However, the guitar teaching data creation device  22  may further include input devices such as a PC keyboard, a mouse, and a light pen. This fact or other configurations such as the structure of the teaching-oriented guitar  11  are substantially similar to those of the guitar teaching system according to the first embodiment, and accordingly, a duplicate description is omitted. 
     &lt;Method for Creating Conversion Data of Chord onto Fingerboard in Guitar&gt; 
     A description is made of a method for creating conversion data of a chord onto the fingerboard in the guitar according to fourth embodiment of the present invention by using a flowchart of  FIG. 92 . Note that the guitar teaching data creation method to be described below is merely an example, and as a matter of course, is realizable by a variety of creation methods other than this method, the variety of creation methods including modification examples of this method. 
     First,  FIG. 93  illustrates a definition to follow on the assumption when diagrams are displayed on the screen of the monitor  23   a  and the fingerboard. In view of ease of playing a guitar, in the case that a chord is three-part bodies, diagrams are defined to display in order of three-string root, fourth-string root, fifth-string root and sixth-string root sequentially on the screen of the monitor  23   a  and the fingerboard. In the case that a chord is four-part bodies, diagrams are defined to display in order of the fifth-string root, sixth-string root and fourth-string root sequentially on the screen of the monitor  23   a  and the fingerboard. In the case that a chord is five-part bodies, diagrams are defined to display in order of fifth-string root and sixth-string root sequentially on the screen of the monitor  23   a  and the fingerboard. In the case that a chord is six-part bodies, a diagram of only sixth-string root is defined to display on the screen of the monitor  23   a  and the fingerboard. 
     (A) In Step S 601  of  FIG. 92 , the guitar teaching data creation program stored in the program storage device connected to the guitar teaching data creation device  22  illustrated in  FIG. 1  is started. Then, the guitar teaching data creation program drives the chord inputting means  221  of the central processing unit  220   a  that composes the guitar teaching data creation device  22  illustrated in  FIG. 1 , and receives the chords. A description is made below on the assumption that the staff notation is displayed on the screen of the monitor illustrated in  FIG. 1 , and the mouse is clicked to the staff notation on the screen of the monitor, and a chord of a cord symbol V 93  (key of C, third inverted form of a dominant 9th chord) as illustrated in  FIG. 94A  is received by the chord inputting means  221 . Note that, by processing based on the chord illustrated in  FIG. 94A , diagrams (graphics) are eventually obtained as shown in  FIG. 94B . The chord illustrated in  FIG. 94A  is indicated by accumulated interval display in which 4th, 6th, 2nd are accumulated from the bottom, as shown in  FIG. 94C . The chords received by the chord inputting means  221  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (B) Next, in Step S 602 , the guitar teaching data creation program causes the distribution map creating means  222  of the CPU  220   a  illustrated in  FIG. 1  to read out, from the data storage device, the data which are illustrated in  FIG. 95  and indicate the sound positions on the fingerboard by English letter display, and the chord received in Step S 601 . Then, the data of the addresses of the respective sounds of  FIG. 95  and the chords received by the chord inputting means  221  are collated with each other, and addresses of BASS F 2 = 22 , 53 , 84  are determined as shown in  FIG. 100A . Moreover, in Step S 603 , as shown in  FIG. 100A , addresses of TENOR B 2 = 2 ,  27 ,  58 ,  89 ,  120 , addresses of ALTO G 3 = 19 ,  50 ,  75 ,  106 ,  137  and addresses of SOPRANO A 3 = 31 ,  62 ,  87 ,  118 ,  149  of voice parts located above when viewed from BASS are determined, and thereby a distribution map of respective sounds is created. The distribution maps as illustrated in  FIG. 100A , which are created by the distribution map creating means  222 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (C) Next, in Step S 604 , the guitar teaching data creation program causes the sequence creating means  223  of the central processing unit  220   a  to read out, from the data storage device, the data as illustrated in  FIG. 100B , in which the sound positions on the fingerboard are converted into the integer values of 1 to 156, the data as illustrated in  FIG. 100C , in which the data converted into the integer values are listed to the lateral sequences, and the distribution maps created in Step S 602 . Then, in the case where the addresses of the sounds of the voice parts located above when viewed from BASS are on the same strings, the sequence creating means  223  excludes the data of the sounds of the duplicate addresses, and extracts data of remaining addresses of sounds. The extracted data is stored in the data storage device. 
     In particular, the sequence creating means  223  takes third-fret F 2 = 22  of the distribution map illustrated in  FIG. 100A  as BASS, and selects and extracts TENOR  2  with respect to BASS  22  as shown in Table 37. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 37 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 2 
               
               
                   
                   
               
            
           
         
       
     
     The extracted combination of BASS  22  and TENOR  2  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22  and TENOR  2 , and searches ALTO  19 ,  50 ,  75 ,  106 ,  137  from the distribution map as shown in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , ALTO  50  is on the sequence lists of B in the same way as TENOR  2 , ALTO  106  is on the sequence lists of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  2  and BASS  22 , and accordingly, it is impossible to touch ALTO  50 ,  106 . Hence, ALTO  50 ,  106  are deleted, and as shown in Table 38, ALTO  19 ,  75 ,  137  are extracted with respect to TENOR  2 . 
     
       
         
           
               
               
               
             
               
                 TABLE 38 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 2 
                 19 
               
               
                 22 
                 2 
                 75 
               
               
                 22 
                 2 
                 137 
               
               
                   
               
            
           
         
       
     
     The combination of BASS  22 , TENOR  2  and ALTO  19 , the combination of BASS  22 , TENOR  2  and ALTO  75 , and the combination of BASS  22 , TENOR  2  and ALTO  137 , which are extracted as shown in Table 38, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  2  and ALTO  19 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map as shown in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  31  is on the sequence lists of A in the same way as ALTO  19 , SOPRANO  62  is on the sequence lists of B in the same way as TENOR  2 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  19 , TENOR  2  and BASS  22 . Accordingly, it is impossible to touch SOPRANO  31 ,  62 ,  118 . Hence, SOPRANO  31 ,  62 ,  118  are deleted, and SOPRANO  87 ,  149  are extracted with respect to ALTO  19 . As a result, as shown in Table 39, combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 39 
               
               
                   
               
               
                   
                 BASS 
                 TENOR  
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 1 
                 22 
                 2 
                 19 
                 87 
               
               
                 2 
                 22 
                 2 
                 19 
                 149 
               
               
                   
               
            
           
         
       
     
     Note that, numbers of “ 1 ” and “ 2 ” described in the left side column in Table 39 indicate that an order of combinations of four-part bodies is “first” and “second” (the same applies to the following Tables). The first and second combinations (sequences) of four-part bodies extracted as shown in Table 39 are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses BASS  22 , TENOR  2  and ALTO  75 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  62  is on the sequence lists of B in the same way as TENOR  2 , SOPRANO  87  is on the sequence lists of C in the same way as ALTO  7  , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of TENOR  2 , ALTO  75  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  87 ,  118 . Hence, SOPRANO  62 ,  87 ,  118  are deleted, and SOPRANO  31 ,  149  are extracted with respect to ALTO  19 . As a result, as shown in Table 40, third and fourth combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 40 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 3 
                 22 
                 2 
                 75 
                 31 
               
               
                 4 
                 22 
                 2 
                 75 
                 149 
               
               
                   
               
            
           
         
       
     
     The third and fourth combinations (sequences) of four-part bodies, which are extracted as shown in Table 40, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses BASS  22 , TENOR  2  and ALTO  19 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  62  is on the sequence lists of B in the same way as TENOR  2 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , SOPRANO  149  is on the sequence lists of E in the same way as ALTO  137 , and all of them are arrayed on the same strings as those of TENOR  2 , BASS  22  and ALTO  137 , and accordingly, it is impossible to touch SOPRANO  62 ,  118 ,  149 . Hence, SOPRANO  62 ,  118 ,  149  are deleted, and remaining SOPRANO  31 ,  87  are extracted. As a result, as shown in Table 41, fifth and sixth combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 41 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                 5 
                 22 
                 2 
                 137 
                 31 
               
               
                 6 
                 22 
                 2 
                 137 
                 87 
               
               
                   
               
            
           
         
       
     
     The fifth and sixth combinations (sequences) of four-part bodies, which are extracted as shown in Table 41, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  takes third-fret F 2 = 22  of the distribution map illustrated in  FIG. 100A  as BASS, and selects and extracts TENOR  27  with respect to BASS  22 , as shown in Table 42. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 42 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 27 
               
               
                   
                   
               
            
           
         
       
     
     The extracted combination of BASS  22  and TENOR  27  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22  and TENOR  27 , and searches ALTO  19 ,  50 ,  75 ,  106 ,  137  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , ALTO  75  is on the sequence lists of C in the same way as TENOR  27 , ALTO  106  is on the sequence lists of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of TENOR  27  and BASS  22 , and accordingly, it is impossible to touch ALTO  75 ,  106 . Hence, ALTO  75 ,  106  are deleted, and ALTO  19 ,  50 ,  137  are extracted as shown in Table 43. 
     
       
         
           
               
               
               
             
               
                 TABLE 43 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 27 
                 19 
               
               
                 22 
                 27 
                 50 
               
               
                 22 
                 27 
                 137 
               
               
                   
               
            
           
         
       
     
     The combination of BASS  22 , TENOR  27  and ALTO  19 , the combination of BASS  22 , TENOR  27  and ALTO  50 , and the combination of BASS  22 , TENOR  27  and ALTO  137 , which are extracted as shown in Table 43, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  27  and ALTO  19 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  31  is on the sequence lists of A in the same way as ALTO  19 , SOPRANO  87  is on the sequence lists of C in the same way as TENOR  27 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  19 , TENOR  27  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  31 ,  87 ,  118 . Hence, SOPRANO  31 ,  87 ,  118  are deleted, and SOPRANO  62 ,  149  are extracted with respect to ALTO  19 . As a result, as shown in Table 44, 7th and 8th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 44 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 7 
                 22 
                 27 
                 19 
                 62 
               
               
                 8 
                 22 
                 27 
                 19 
                 149 
               
               
                   
               
            
           
         
       
     
     The seventh and eighth combinations (sequences) of four-part bodies, which are extracted as shown in Table 44, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  27  and ALTO  50 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  62  is on the sequence lists of B in the same way as ALTO  50 , SOPRANO  87  is on the sequence lists of C in the same way as TENOR  27 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and all of them are arrayed on the same strings as those of ALTO  50 , TENOR  27  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  87 ,  118 . Hence, SOPRANO  62 ,  87 ,  118  are deleted, and SOPRANO  31 ,  149  are extracted with respect to ALTO  50 . As a result, as shown in Table 45, 9th and 10th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 45 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 9 
                 22 
                 27 
                 50 
                 31 
               
               
                 10 
                 22 
                 27 
                 50 
                 149 
               
               
                   
               
            
           
         
       
     
     The ninth and tenth combinations (sequences) of four-part bodies, which are extracted as shown in Table 45, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  27  and ALTO  137 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  87  is on the sequence lists of C in the same way as TENOR  27 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , SOPRANO  149  is on the sequence lists of E in the same way as ALTO  137 , and all of them are arrayed on the same strings as those of TENOR  27 , BASS  22  and ALTO  137 , and accordingly, it is impossible to touch SOPRANO  87 ,  118 ,  149 . Hence, SOPRANO  87 ,  118 ,  149  are deleted, and SOPRANO  31 ,  62  are extracted with respect to ALTO  137 . As a result, as shown in Table 46, 11th and 12nd combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 46 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                 11 
                 22 
                 27 
                 137 
                 31 
               
               
                 12 
                 22 
                 27 
                 137 
                 62 
               
               
                   
               
            
           
         
       
     
     The 11th and 12nd combinations (sequences) of four-part bodies, which are extracted as shown in Table 46, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  takes third-fret F 2 = 22  of the distribution map illustrated in  FIG. 100A  as BASS, and select and extract TENOR  89  with respect to BASS  22 , as shown in Table 47. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 47 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 89 
               
               
                   
                   
               
            
           
         
       
     
     The extracted combination of BASS  22  and TENOR  89  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22  and TENOR  89 , and searches ALTO  19 ,  50 ,  75 ,  106 ,  137  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , ALTO  106  is on the sequence lists of D in the same way as BASS  22 , ALTO  137  is on the sequence lists of C in the same way as TENOR  89 , and both of them are arrayed on the same strings as those of BASS  22  and TENOR  89 , and accordingly, it is impossible to touch ALTO  106 ,  137 . Hence, ALTO  106 ,  137  are deleted, and ALTO  19 ,  50 ,  75  are extracted as shown in Table 48. 
     
       
         
           
               
               
               
             
               
                 TABLE 48 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                 22 
                 89 
                 19 
               
               
                 22 
                 89 
                 50 
               
               
                 22 
                 89 
                 75 
               
               
                   
               
            
           
         
       
     
     The combination of BASS  22 , TENOR  89  and ALTO  19 , the combination of BASS  22 , TENOR  89  and ALTO  50 , and the combination of BASS  22 , TENOR  89  and ALTO  75 , which are extracted as shown in Table 48, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  89  and ALTO  19 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  31  is on the sequence lists of A in the same way as ALTO  19 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , SOPRANO  149  is on the sequence lists of E in the same way as ALTO  137 , and all of them are arrayed on the same strings as those of ALTO  19 , BASS  22  and ALTO  137 , and accordingly, it is impossible to touch SOPRANO  31 ,  118 ,  149 . Hence, SOPRANO  31 ,  118 ,  149  are deleted, and remaining SOPRANO  62 ,  87  are extracted. As a result, as shown in Table 49, 13th and 14th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 49 
               
               
                   
                   
               
               
                   
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 13 
                 22 
                 89 
                 19 
                 62 
               
               
                   
                 14 
                 22 
                 89 
                 19 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     The 13th and 14th combinations (sequences) of four-part bodies, which are extracted as shown in Table 49, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  89  and ALTO  50 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  62  is on the sequence lists of B in the same way as ALTO  50 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , SOPRANO  149  is on the sequence lists of E in the same way as TENOR  89 , and all of them are arrayed on the same strings as those of ALTO  50 , BASS  22  and TENOR  89 , and accordingly, it is impossible to touch SOPRANO  62 ,  118 ,  149 . Hence, SOPRANO  62 ,  118 ,  149  are deleted, and remaining SOPRANO  31 ,  87  are extracted. As a result, as shown in Table 50, 15th and 16th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 50 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                 15 
                 22 
                 89 
                 50 
                 31 
               
               
                 16 
                 22 
                 89 
                 50 
                 87 
               
               
                   
               
            
           
         
       
     
     The 15th and 16th combinations (sequences) of four-part bodies, which are extracted as shown in Table 50, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  89  and ALTO  75 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  87  is on the sequence lists of C in the same way as ALTO  75 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , SOPRANO  149  is on the sequence lists of E in the same way as TENOR  89 , and all of them are arrayed on the same strings as those of ALTO  75 , BASS  22  and TENOR  89 , and accordingly, it is impossible to touch SOPRANO  87 ,  118 ,  149 . Hence, SOPRANO  87 ,  118 ,  149  are deleted, and remaining SOPRANO  31 ,  62  are extracted. As a result, as shown in Table 51, 17th and 18th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 51 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                 17 
                 22 
                 89 
                 75 
                 31 
               
               
                 18 
                 22 
                 89 
                 75 
                 62 
               
               
                   
               
            
           
         
       
     
     The 17th and 18th combinations (sequences) of four-part bodies, which are extracted as shown in Table 51, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  takes third-fret F 2 = 22  of the distribution map illustrated in  FIG. 100A  as BASS, and selects and extracts TENOR  120  with respect to BASS  22 , as shown in Table 52. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 52 
               
               
                   
                   
               
               
                   
                 BASS 
                 TENOR 
               
               
                   
                   
               
             
            
               
                   
                 22 
                 120 
               
               
                   
                   
               
            
           
         
       
     
     The extracted combination of BASS  22  and TENOR  120  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22  and TENOR  120 , and searches ALTO  19 ,  50 ,  75 ,  106 ,  137  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , ALTO  106  is on the sequence lists of D in the same way as BASS  22 , and ALTO  106  are arrayed on the same strings as ALTO  75 , and accordingly, it is impossible to touch ALTO  106 . Hence, ALTO  106  is deleted, and ALTO  19 ,  50 ,  75 ,  137  are extracted as shown in Table 53. 
     
       
         
           
               
               
               
             
               
                 TABLE 53 
               
               
                   
               
               
                 BASS 
                 TENOR 
                 ALTO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                 22 
                 120 
                 19 
               
               
                 22 
                 120 
                 50 
               
               
                 22 
                 120 
                 75 
               
               
                 22 
                 120 
                 137 
               
               
                   
               
            
           
         
       
     
     The combination of BASS  22 , TENOR  120  and ALTO  19 , the combination of BASS  22 , TENOR  120  and ALTO  50 , the combination of BASS  22 , TENOR  120  and ALTO  75 , and the combination of BASS  22 , TENOR  120  and ALTO  137 , which are extracted as shown in Table 53, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  120  and ALTO  19 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  31  is on the sequence lists of A in the same way as ALTO  19 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of ALTO  19  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  31 ,  118 . Hence, SOPRANO  31 ,  118  are deleted, and remaining SOPRANO  62 ,  87 ,  149  are extracted. As a result, as shown in Table 54, 19th to 21st combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 54 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 19 
                 22 
                 120 
                 19 
                 62 
               
               
                 20 
                 22 
                 120 
                 19 
                 87 
               
               
                 21 
                 22 
                 120 
                 19 
                 149 
               
               
                   
               
            
           
         
       
     
     The 19th to 21st combinations (sequences) of four-part bodies, which are extracted as shown in Table 54, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  120  and ALTO  50 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  62  is on the sequence lists of B in the same way as ALTO  50 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of ALTO  50  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  62 ,  118 . Hence, SOPRANO  62 ,  118  are deleted, and remaining SOPRANO  31 ,  87 ,  149  are extracted. As a result, as shown in Table 55, 22nd to 24th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 55 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 22 
                 22 
                 120 
                 50 
                 31 
               
               
                 23 
                 22 
                 120 
                 50 
                 87 
               
               
                 24 
                 22 
                 120 
                 50 
                 149 
               
               
                   
               
            
           
         
       
     
     The 22nd to 24th combinations (sequences) of four-part bodies, which are extracted as shown in Table 55, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  120  and ALTO  75 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  87  is on the sequence lists of C in the same way as ALTO  75 , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , and both of them are arrayed on the same strings as those of ALTO  75  and BASS  22 , and accordingly, it is impossible to touch SOPRANO  87 ,  118 . Hence, SOPRANO  87 ,  118  are deleted, and remaining SOPRANO  31 ,  62 ,  149  are extracted. As a result, as shown in Table 56, 25th to 27th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 56 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 25 
                 22 
                 120 
                 75 
                 31 
               
               
                 26 
                 22 
                 120 
                 75 
                 62 
               
               
                 27 
                 22 
                 120 
                 75 
                 149 
               
               
                   
               
            
           
         
       
     
     The 22nd to 24th combinations (sequences) of four-part bodies, which are extracted as shown in Table 56, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Next, the sequence creating means  223  focuses the combination of BASS  22 , TENOR  120  and ALTO  137 , and searches SOPRANO  31 ,  62 ,  87 ,  118 ,  149  from the distribution map illustrated in  FIG. 100A . From the lateral sequence lists of  FIG. 100C , SOPRANO  118  is on the sequence lists of D in the same way as BASS  22 , SOPRANO  149  is on the sequence lists of E in the same way as ALTO  137 , and both of them are arrayed on the same strings as those of BASS  22  and ALTO  137 , and accordingly, it is impossible to touch SOPRANO  118 ,  149 . Hence, SOPRANO  118 ,  149  are deleted, and remaining SOPRANO  31 ,  62 ,  87  are extracted. As a result, as shown in Table 57, 28th to 30th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 57 
               
               
                   
                   
               
               
                   
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 28 
                 22 
                 120 
                 137 
                 31 
               
               
                   
                 29 
                 22 
                 120 
                 137 
                 62 
               
               
                   
                 30 
                 22 
                 120 
                 137 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     The 28th to 30th combinations (sequences) of four-part bodies, which are extracted as shown in Table 57, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     In a similar way to the sequence of extracting the combinations of four-part bodies with focusing BASS  22  as already mentioned, the sequence creating means  223  focuses BASS  53  and extracts combinations of four-part bodies. As a result, as shown in Table 58, 31st to 60th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE 58 
               
               
                   
                   
               
               
                   
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 31 
                 53 
                 2 
                 19 
                 87 
               
               
                   
                 32 
                 53 
                 2 
                 19 
                 118 
               
               
                   
                 33 
                 53 
                 2 
                 75 
                 31 
               
               
                   
                 34 
                 53 
                 2 
                 75 
                 118 
               
               
                   
                 35 
                 53 
                 2 
                 106 
                 31 
               
               
                   
                 36 
                 53 
                 2 
                 106 
                 87 
               
               
                   
                 37 
                 53 
                 27 
                 19 
                 62 
               
               
                   
                 38 
                 53 
                 27 
                 19 
                 118 
               
               
                   
                 39 
                 53 
                 27 
                 50 
                 31 
               
               
                   
                 40 
                 53 
                 27 
                 50 
                 118 
               
               
                   
                 41 
                 53 
                 27 
                 106 
                 31 
               
               
                   
                 42 
                 53 
                 27 
                 106 
                 62 
               
               
                   
                 43 
                 53 
                 58 
                 19 
                 62 
               
               
                   
                 44 
                 53 
                 58 
                 19 
                 87 
               
               
                   
                 45 
                 53 
                 58 
                 50 
                 31 
               
               
                   
                 46 
                 53 
                 58 
                 50 
                 87 
               
               
                   
                 47 
                 53 
                 58 
                 75 
                 31 
               
               
                   
                 48 
                 53 
                 58 
                 75 
                 62 
               
               
                   
                 49 
                 53 
                 120 
                 19 
                 62 
               
               
                   
                 50 
                 53 
                 120 
                 19 
                 87 
               
               
                   
                 51 
                 53 
                 120 
                 19 
                 118 
               
               
                   
                 52 
                 53 
                 120 
                 50 
                 31 
               
               
                   
                 53 
                 53 
                 120 
                 50 
                 62 
               
               
                   
                 54 
                 53 
                 120 
                 50 
                 118 
               
               
                   
                 55 
                 53 
                 120 
                 75 
                 31 
               
               
                   
                 56 
                 53 
                 120 
                 75 
                 62 
               
               
                   
                 57 
                 53 
                 120 
                 75 
                 118 
               
               
                   
                 58 
                 53 
                 120 
                 106 
                 31 
               
               
                   
                 59 
                 53 
                 120 
                 106 
                 62 
               
               
                   
                 60 
                 53 
                 120 
                 106 
                 87 
               
               
                   
                   
               
            
           
         
       
     
     The 31st to 60th combinations (sequences) of four-part bodies, which are extracted as shown in Table 58, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     In a similar way, the sequence creating means  223  focuses BASS  84  and extracts combinations of four-part bodies. As a result, as shown in Table 59 and Table 60, 61st to 109th combinations of four-part bodies are extracted. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 59 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO 
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 61 
                 84 
                 2 
                 19 
                 87 
               
               
                 62 
                 84 
                 2 
                 19 
                 118 
               
               
                 63 
                 84 
                 2 
                 19 
                 149 
               
               
                 64 
                 84 
                 2 
                 75 
                 31 
               
               
                 65 
                 84 
                 2 
                 75 
                 118 
               
               
                 66 
                 84 
                 2 
                 75 
                 149 
               
               
                 67 
                 84 
                 2 
                 106 
                 31 
               
               
                 68 
                 84 
                 2 
                 106 
                 87 
               
               
                 69 
                 84 
                 2 
                 106 
                 149 
               
               
                 70 
                 84 
                 2 
                 137 
                 31 
               
               
                 71 
                 84 
                 2 
                 137 
                 87 
               
               
                 72 
                 84 
                 2 
                 137 
                 118 
               
               
                 73 
                 84 
                 27 
                 19 
                 62 
               
               
                 74 
                 84 
                 27 
                 19 
                 118 
               
               
                 75 
                 84 
                 27 
                 19 
                 149 
               
               
                 76 
                 84 
                 27 
                 50 
                 31 
               
               
                 77 
                 84 
                 27 
                 50 
                 118 
               
               
                 78 
                 84 
                 27 
                 50 
                 149 
               
               
                 79 
                 84 
                 27 
                 106 
                 31 
               
               
                 80 
                 84 
                 27 
                 106 
                 62 
               
               
                 81 
                 84 
                 27 
                 106 
                 149 
               
               
                 82 
                 84 
                 27 
                 137 
                 31 
               
               
                 83 
                 84 
                 27 
                 137 
                 62 
               
               
                 84 
                 84 
                 27 
                 137 
                 118 
               
               
                 85 
                 84 
                 58 
                 19 
                 62 
               
               
                 86 
                 84 
                 58 
                 19 
                 87 
               
               
                 87 
                 84 
                 58 
                 19 
                 149 
               
               
                 88 
                 84 
                 58 
                 50 
                 31 
               
               
                 89 
                 84 
                 58 
                 50 
                 87 
               
               
                 90 
                 84 
                 58 
                 50 
                 149 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 60 
               
               
                   
               
               
                   
                 BASS 
                 TENOR 
                 ALTO  
                 SOPRANO 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 91 
                 84 
                 58 
                 75 
                 31 
               
               
                 92 
                 84 
                 58 
                 75 
                 62 
               
               
                 93 
                 84 
                 58 
                 75 
                 149 
               
               
                 94 
                 84 
                 58 
                 137 
                 31 
               
               
                 95 
                 84 
                 58 
                 137 
                 62 
               
               
                 96 
                 84 
                 58 
                 137 
                 87 
               
               
                 97 
                 84 
                 89 
                 19 
                 62 
               
               
                 98 
                 84 
                 89 
                 19 
                 87 
               
               
                 99 
                 84 
                 89 
                 19 
                 118 
               
               
                 100 
                 84 
                 89 
                 50 
                 31 
               
               
                 101 
                 84 
                 89 
                 50 
                 87 
               
               
                 102 
                 84 
                 89 
                 50 
                 118 
               
               
                 103 
                 84 
                 89 
                 75 
                 31 
               
               
                 104 
                 84 
                 89 
                 75 
                 62 
               
               
                 105 
                 84 
                 89 
                 75 
                 118 
               
               
                 106 
                 84 
                 89 
                 106 
                 31 
               
               
                 107 
                 84 
                 89 
                 106 
                 62 
               
               
                 108 
                 84 
                 89 
                 106 
                 87 
               
               
                 109 
                 84 
                 89 
                 106 
                 149 
               
               
                   
               
            
           
         
       
     
     The 61st to 109th combinations (sequences) of four-part bodies, which are extracted as shown in Table 59 and Table 60, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (D) In Step S 605  of  FIG. 92 , the guitar teaching data creation program causes the numerical diagram creating means  224  of the CPU  220   a  to read out the first to 109th (109) sequences, which are created in Step S 604 , from the data storage device. Then, by using the data of the integer values of 1 to 156, which are as illustrated in  FIG. 100B , the numerical diagram creating means  224  converts (expresses) the 109 sequences, which are created by the sequence creating means  223 , into 109 numerical diagrams, and creates the first to 109th numerical diagram as shown in  FIG. 101A  to  FIG. 111I . The first to 109th (109) numerical diagrams created by the numerical diagram creating means  224  are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (E) Moreover, in Step S 606 , the guitar teaching data creation program causes the graphic converting means  225  of the CPU  220   a  to read out data (refer to the first embodiment) for converting the respective positions of the numerical diagram into X-Y coordinates as illustrated in  FIG. 99  and the first to 109th (109) numerical diagrams, which are created in Step S 605 , from the data storage device. Then, by using the data for converting the numerical diagrams into the X-Y coordinates illustrated in  FIG. 99 , the graphic converting means  225  converts the first to 109th (109) numerical diagrams, which are created by the numerical diagram creating means  224 , into graphics of diagrams composed of arrays of dots, as shown in  FIG. 112A  to  FIG. 122I . 
     In this event, in a similar way to the first embodiment, a circle is filled in each region where the inequality of circle defined by Expression (1) prescribes the value of the X-Y coordinate=(a,b) of each numeral, the value being expressed in the numerical diagram, whereby the dot is drawn. That is to say, a circle, which takes the X-Y coordinate=(a,b) as a center, is defined, and by such dots obtained by filling the circles, the numerical diagrams are expressed as the graphics of the diagrams composed of the arrays of the dots, which are as illustrated in  FIG. 112A  to  FIG. 122I , whereby the diagrams are created. The graphics of the first to 109th (109) diagrams, which are converted by the graphic converting means  225 , are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     (F) In Step S 607 , the guitar teaching data creation program causes the display means  226  of the central processing unit  220   a  to read out the first to 109th diagrams (graphics) illustrated in  FIG. 112A  to  FIG. 122I  from the data storage device, and screens the diagrams in accordance with fret number. For example, the display means  226  selects and extracts a diagram extending over three frets, a diagram extending over four frets, a diagram extending over five frets, a diagram extending over six frets, a diagram extending over seven frets, a diagram extending over eight frets, a diagram extending over nine frets, a diagram extending over ten frets, a diagram extending over eleven frets, and a diagram extending over twelve frets, sequentially. Meanwhile, the diagrams may be screened for each a plurality of frets. For example, the display means  226  may select and extract diagrams every two frets, such that diagrams extend over one or two fret, diagrams extend over three or four fret, diagrams extend over five or six fret, diagrams extend over seven or eight fret, diagrams extend over nine or ten fret, or diagrams extend over eleven or twelve fret. 
     In the case of first to 109th diagrams illustrated in  FIG. 112A  to  FIG. 122I , no diagram within four frets is presented and extracted. As shown in  FIG. 123A , the 39th, 45th, 48th, 92nd, 104th and 108th diagrams are extracted as a diagram extending over five frets and stored in the data storage device connected to the guitar teaching data creation device  22 . As shown in  FIG. 123B , a 9th diagram is extracted as a diagram extending over six frets, and stored in the data storage device connected to the guitar teaching data creation device  22 . As shown in  FIG. 123C , the 46th, 89th and 101st diagrams are extracted as diagrams extending over seven frets, are stored in the data storage device connected to the guitar teaching data creation device  22 . As shown in  FIG. 123D , the 37th, 43rd, 47th, 105th and 107th diagrams are extracted as diagrams extending over eight frets, are stored in the data storage device connected to the guitar teaching data creation device  22 . 
     Then, the display means  226  preferentially extracts diagrams extending over lower frets from the 109 diagrams stored in the data storage device connected to the guitar teaching data creation device  22 , since a diagram extending over lower frets is easier to touch the strings. For example, diagrams within six frets, that is, the 39th, 45th, 48th, 92nd, 104th and 108th diagrams extend over five frets illustrated in  FIG. 123A , and the 9th diagram extend over six frets illustrated in  FIG. 123B . 
     (G) Next, in Step S 608 , the display means  226  determines root string of the 9th, 39th, 45th, 48th, 92nd, 104th and 108th diagrams, and arranges them in order of the 39th, 45th and 48th diagrams having the fifth-string root, the 92nd, 104th and 108th diagrams having the sixth-string root, and the 9th diagram having the fourth-string root. At this timing, the diagrams are arranged arbitrarily for each string root. Then, the diagrams are prioritized so as to place higher priority on a lower position for each string root so the diagrams are arranged in order of the priority for each string root. As a result, as shown in  FIG. 124A , the priority is given in order of the 39th, 45th and 48th diagrams in the fifth-string root. Meanwhile, the priority is given in order of the 92nd, 104th and 108th diagrams in the sixth-string root. 
     (H) Next, in Step S 609 , the display means  226  reads out definitions of fourth, fifth and eighth from the data storage device connected to the guitar teaching data creation device  22 , and determines whether addresses of respective voice parts of the diagrams comply with the fourth, fifth and eighth definitions, and excludes a diagram from a highest-priority diagram when the diagram does not comply with the fourth, fifth and eighth definitions (the fourth, fifth and eighth definitions will hereinafter be described in detail). Here, the 39th diagram of fifth-string root does not comply with the fourth definition among the fourth, fifth and eighth definitions, and therefore the 39th diagram is extruded from the highest-priority diagram. Moreover, the 92nd diagram of the sixth-string root does not comply with the fourth definition among the fourth, fifth and eighth definitions, and therefore the 92nd diagram is extruded from the highest-priority diagram. As a result, as shown in  FIG. 124B , the 45th diagram is determined as the highest-priority diagram in the fifth-string root, and the 104th diagram is determined as the highest-priority diagram in the sixth-string root. Moreover, as shown in  FIG. 124C , the 45th diagram, the 92nd-diagram and the 9th diagram are extracted as the highest-priority diagrams each for the fifth-string root, the sixth-string root and the fourth-string root. 
     (I) In Step S 610 , since the diagrams illustrated in  FIG. 124C  are four-part bodies, the display means  226  sequentially displays the 45th diagram of the fifth-string root, the 92nd-diagram of the sixth-string root, and the 9th diagram of the fourth-string root on the screen of the monitor  23   a  and the fingerboard, by following the definition illustrated in  FIG. 93 . On the screen of the monitor (display device)  23   a , for example as shown in  FIG. 125A , a musical score and a tab score are displayed, and diagrams having highest-priority are also displayed between the musical score and the tab score. Although a single note is determined (recognized) easily by displaying the TAB score, a chord is determined (recognized) difficulty. Here, it is possible to determine (recognize) a chord easily by displaying the diagrams. Then, diagrams as shown in  FIG. 125B  are sequentially displayed in order of priority in accordance with the definition illustrated in  FIG. 93  at every clicking tab A of an arbitrary diagram and chord on the musical score via a mouse or the like. 
     &lt;About Fourth, Fifth and Eighth Definitions&gt; 
     Next, a description is made of the fourth, fifth and eighth definitions, which are used for prioritizing the diagrams in Step S 609  of  FIG. 92 , in a method for creating conversion data (diagram) of a chord onto a guitar fingerboard, according to the fourth embodiment of the present invention. As mentioned above, a diagram is excluded from the highest-priority diagram when the diagram does not comply with the fourth, fifth and eighth definitions. Note that, as shown in  FIG. 126 , the 4th interval of the 4th scale as a root in a diatonic scale forms an augmented 4th. On the other hand, the other 4th intervals form perfect 4th, and shift between respective strings as shown in lower stage of the 8th scale of  FIG. 126 . As shown in  FIG. 128 , the 5th interval of the 7th scale in a diatonic scale forms a diminished 5th. On the other hand, the other 5th intervals form perfect 5th, and shift between respective strings as shown in lower stage of the first scale of  FIG. 128 . As shown in  FIG. 130 , all of the 8th intervals in the first to eight scales in a diatonic scale forms perfect 8th. 
       FIG. 126  illustrates the definition of address of 4th interval with the whole key signature. The 4th intervals in the first to third, 5th to 8th scales form perfect 4th, and the 4th interval in the 4th scale forms an augmented 4th. In the perfect 4th of the 8th scale, the address is defined that one address is positioned upper one string from BASS, as shown in  FIG. 127A . In similar way, in the augmented 4th of the 4th scale, the address is defined that one address is positioned upper one string from BASS, as shown in  FIG. 127B . 
     In the case of the perfect 4th and the augmented 4th, when one address is positioned upper two-strings from BASS, the addresses are within 5 frets from BASS and forms lower position. However, in this case, the basic from of the diagram is collapsed, and therefore it is possible to cause confusion. 
       FIG. 128  illustrates the definition of addresses of the 5th interval with the whole key signature. The 5th intervals in the first to 6th and 8th scales form perfect 5th. Meanwhile, the 5th interval in the 7th scale forms a diminished 5th. In the case of the perfect 5th of the first scale, the sound address is defined as shown in  FIG. 129A . The diminished 5th of the 7th scale, the sound address is defined as shown in  FIG. 129B . 
     In the case of the perfect 5th and the diminished 5th, when one address is positioned upper two-strings from BASS, the addresses are within 5 frets from BASS and forms lower position. However, in this case, the basic from of the diagram is collapsed, and therefore it is possible to cause confusion. 
       FIG. 130  illustrates the definition of addresses of the 8th interval with the whole key signature. All of eighth intervals in the first to 8th scales form perfect eighths. In the case of the perfect eighth in the 8th scale, the highest-priority address is defined that one address is positioned upper two-strings from BASS, as shown in  FIG. 131A . Moreover, the second priority address is defined that one address is positioned upper one-string from BASS, as shown in  FIG. 131B . 
     As described above, in accordance with the guitar teaching data creation device  22  according to the fourth embodiment, the difficult-to-understand mechanism on the fingerboard can be grasped mathematically from bird&#39;s eyes, and such data, which is necessary to enhance the skill for ability to convert chords onto the fingerboard, the conversion being the most difficult for guitarists, can be created. In such a way, there can be further provided: the guitar teaching system including the guitar teaching data creation device  22  according to the fourth embodiment; the guitar teaching data creation method using the guitar teaching data creation device  22  according to the fourth embodiment; and the guitar teaching data creation program for actuating the guitar teaching data creation device  22  according to the fourth embodiment. 
     (Other Embodiments) 
     As above, the present invention is described by the first to fourth embodiments; however, it should not be understood that the description and the drawings, which from a part of this disclosure, limit the present invention. From this disclosure, a variety of alternative embodiments, examples and operation technologies will be obvious for those skilled in the art in view of the teachings herein. 
     For example, in the first embodiment, the configuration of the guitar teaching system is explained by example as illustrated in  FIG. 1 , the guitar teaching system including: the teaching-oriented guitar  11 ; the interface  21   a  connected to the teaching-oriented guitar  11  via the wire  32 ; the guitar teaching data creation device  22  connected to the interface  21   a  via the wire  35 ; the monitor  23   a  connected to the guitar teaching data creation device  22  via the wire  37 ; and the piano keyboard-type keyboard  15  such as a MIDI keyboard connected to the interface  21   a  via the wire  34 . However, the guitar teaching system of the present invention is not limited to the configuration illustrated in  FIG. 1 , and the piano keyboard-type keyboard  15  and the headphone  16   b  connected to the piano keyboard-type keyboard  15  may be omitted. 
     Alternatively, the piano keyboard-type keyboard  15  may be omitted, and as illustrated in  FIG. 36 , in place thereof, a mixer  18  may be connected to the teaching-oriented guitar  11 , and an amplifier or speaker  19  may be connected to this mixer  18 . In  FIG. 36 , a headphone  16   d  is connected to the teaching-oriented guitar  11  and the mixer  18 , and a headphone  16   c  is connected to the guitar teaching data creation device  22 . Such a configuration illustrated in  FIG. 36  is effective in a case where there is a sound source similar to that of the usual music production software in application software of the guitar teaching data creation program of the present invention. Besides, the configuration is a configuration in which the teaching-oriented guitar  11  is connected to an interface  21   b , the guitar teaching data creation device (PC)  22  is connected to the interface  21   b , and a monitor  23   b  and the headphone  16   c  are connected to the guitar teaching data creation device (PC)  22 . Accordingly, this is basically a configuration similar to that of the guitar teaching system according to the first embodiment, and the interface  21   b  functions to synchronize the training program for selectively lighting, at the predetermined positions, the arbitrary luminous bodies Lij in the LED dot matrix provided in the CPU  113  built in the body  123  of the teaching-oriented guitar  11 , the CPU  113  being illustrated in  FIG. 3 , and the guitar teaching data creation program of the present invention with each other. 
     Alternatively, as illustrated in  FIG. 37 , a configuration in which the guitar teaching data creation device (PC) is built in a monitor  23   c  may be employed. In  FIG. 37 , such features that the mixer  18  is connected to the teaching-oriented guitar  11 , and that the amplifier or speaker  19  is connected to this mixer  18  are similar to those of  FIG. 36 . In  FIG. 37 , a headphone  16   f  is connected to the mixer  18 , and a headphone  16   e  is connected to the monitor  23   c . Such a configuration illustrated in  FIG. 37  is also effective in the case where there is a sound source similar to that of the usual music production software in the application software of the guitar teaching data creation program of the present invention, and a sound can be outputted from the sound source via the mixer  18  and the amplifier or speaker  19 . Also in  FIG. 37 , the interface  21   c  functions to synchronize the training program for selectively lighting, at the predetermined positions, the arbitrary luminous bodies Lij in the LED dot matrix provided in the CPU  113  built in the body  123  of the teaching-oriented guitar  11 , the CPU  113  being illustrated in  FIG. 3 , and the guitar teaching data creation program of the present invention with each other. 
     In  FIG. 37 , such a configuration in which the guitar teaching data creation device (PC) is built in the monitor  23   c  is illustrated. However, the touch panel  114  illustrated in  FIG. 2  may be integrated with the monitor  23   c . That is to say, for example, a point device is provided, which forms an electric field on an entire surface of the monitor  23   c  composed of a liquid crystal display (LCD) or a plasma display (PDP), catches a change of a surface charge of a touch portion, and performs position detection of an electrostatic capacitance mode, whereby a function of an input device equivalent to the touch panel  114  may be provided on the surface of the monitor  23   c . Alternatively, a pointing device of a resistance film mode is provided, which applies a voltage to a glass surface or film surface of the monitor  23   c , and performs position detection for a pushed position, the detection being made by conduction of a touched portion, whereby the function of the input device equivalent to the touch panel  114  may be provided on the surface concerned. In either case, as illustrated in  FIG. 2 , the monitor having the function of the touch panel on the surface may be embedded in a part of the top plate  125  of the body  123  of the teaching-oriented guitar  11 , or may be formed into a thin display of a tablet type or the like, which is mountable on a music stand, and may be configured separately from the teaching-oriented guitar  11 . In the case of embedding the monitor, which has the function of the touch panel on the surface, in an part of the top plate  125  of the teaching-oriented guitar  11 , if the function of the guitar teaching data creation device (PC)  22  illustrated in  FIG. 1  is assembled into the CPU  113  illustrated in  FIG. 3 , then a compact configuration can be realized. 
     Moreover, in the above-described first to fourth embodiments, the description has been made of the case where the staff notation is displayed on the screen of the monitor  23   a  by using the guitar teaching data creation program, and the chord is inputted by clicking the mouse on the staff notation on the screen of the monitor  23   a . However, without using the mouse, a finger, a pen tip and the like may be caused to directly touch the staff notation to input the chord after the staff notation is displayed on the monitor  23   a ,  23   b  or  23   c , each of which has the function of the touch panel. 
     Furthermore, such diagrams (forms) as illustrated in  FIG. 133B ,  FIG. 134B ,  FIG. 135B ,  FIG. 136B  and  FIG. 137B  are stored in a database in advance together with the chords illustrated in  FIG. 133A ,  FIG. 134A ,  FIG. 135A ,  FIG. 136A  and  FIG. 137A , and the diagrams may be searched from the database by inputting the chords. Though not illustrated, a variety of main storage devices or auxiliary storage devices, which are similar to those of the usual computer system, each just need to be used as a data storage device that stores the database. The data storage device can be composed of semiconductor memories, magnetic disks, optical disks, magneto-optical disks, magnetic tapes, and the like. 
     That is to say, as illustrated in a flowchart of  FIG. 132 , in Step S 601 , the diagram inputting means of the central processing unit is driven, and the chords and the diagrams (forms), which are illustrated in  FIGS. 133A to 137B , are inputted in advance via the input device to the database provided in the data storage device. Then, in Step S 602 , chord inputting means of the central processing unit just needs to be driven, and the chords just need to be received via the input device, and in Step S 603 , diagram searching means of the central processing unit just needs to be caused to search the diagrams from the database, which is provided in the data storage device, by using the received chords. Then, in Step S 604 , by using a search result of Step S 603 , diagram determining means of the central processing unit just needs to be caused to determine the diagrams. Thereafter, in a similar way to the teaching data creation device according to the first to fourth embodiments, by using the display means of the central processing unit, the determined graphics just needs to be arranged for each BASS of the respective strings on the screen of the monitor similar to that illustrated in  FIG. 1  and on the fingerboard, and just needs to be sequentially displayed thereon. 
     Also in such a procedure as illustrated in the flowchart of  FIG. 132 , the changes of the forms of the respective chords and the positions of the sounds thereof can be clarified and displayed, and accordingly, guitarists can arrange and grasp the difficulty in understanding the harmonies and the mechanisms. That is to say, as a matter of course, the present invention incorporates a variety of embodiments and the like, which are not described herein. Hence, the technical scope of the present invention is determined by invention specifying items according to the scope of claims reasonable from the above description. 
     The present invention is usable for the fields which include the industry such as the manufacturing of the electronic musical instrument, and the service industry such as guitar teaching.