# 1911 Encyclopædia Britannica/Pitch, Musical

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​PITCH, MUSICAL. The pitch of a musical sound is aurally defined by its absolute position in the scale and by its relative position with regard to other musical sounds. It is precisely defined by a vibration number recording the frequency of the pulsations of a tense string, a column of air, or other vibrator, in a second of time. In Great Britain and America the complete vibration to and fro (swing both ways of a pendulum) is taken as the unit; elsewhere the vibration in one direction only (swing one way of the pendulum). The only official standard is the French, dating from 1859, preserved by a tuning-fork vibrating 870·9 (double vib. 435·45) at a temperature of 15° Centigrade (59° Fahr.) in a second. The vibration number stated in the edict establishing the Diapason Normal is 870 (435), which for comparison will be here adhered to. The natural basis for a standard musical pitch is the voice, particularly the male voice, which has been of greater importance historically. There is no reason to suppose the human voice has varied, during the period of which we have evidence, more than other physical attributes. The only difference to be reckoned with may be in recent tendencies of solo vocalists to sing for effect, and so to ​ extend the compass of the voice upwards. Otherwise we may assume no disturbing alteration has taken place for more than 2000 years in its position and extent. Vibrations increase in rapidity as a note rises and decrease as it falls. Any note may be a pitch note; for orchestras custom has settled upon al in the treble clef, for organs and pianos in Great Britain 02, and for modern brass instruments b flatl.
We are not without a clue to the pitch usual in the classic Greek and Alexandrian ages: the vocal octave to which the lyre “as adapted was noted as from e to el. As in choruses baritone and low tenor singers always prevail, d-dl, at French or at medium pitch, would really be the Greek singing octave; we may therefore regard it as a tone lower than that to which we are accustomed. But to sing the lower Greek modes in or near the wocal octave it was necessary to transpose (/ie-ra. Bo)'/1) a fourth up ards, which is effected in modern notation by a fiat placed upon the b line of the staff; thus modulating from our major key of C to that of F. This transposition has had, as we shall see much to do with the history of our subject, ultimately influencing the ecclesiastical chant and lasting until the 17th century of our era It does not appear from any evidence that the keyboards-when there were more than one—of the early organs were arranged for transposition, but it is certain that the Flemish harpsichords to 1650 were made with double keyboards to accommodate it (see Hipkins' History of the Piarioforte, 1897). But a positive identity of pitch cannot be claimed for any period ot time, and certainly not for the early organs; the foot-rule of the organ-builder, which had to do with the lengths of the pipes, and which varied in every country and province, could easily cause a difference of a semitone. Scale and wind-pressure are also important factors. But with all these often opposed conditions, we find less variation than might be expected, the main and really important divergence being due to the necessity of transposition, which added a very high pitch to the primarily com ement low one.
The first to attempt to define pitch would seem to have been Arnold Schlick (Musica ausgetcutscht und ausgezogert, Heidelberg, 1 511), who gives a measure, a line of 4% Rhenish inches, which, he say s, multiplied sixteen times, should be the lowest F of a small organ. He gives no diameter or wind-pressure. Dr A. I. Ellis used this indication to have an organ pipe made which with one-sixteenth diameter and a wind-pressure of 3% in., at one fourth Schlick's length, gave fl 301-6, from which he derived a just major third of al 377, which would compare very well with an old Greek a* Schlick goes on to say the organ is to be suited to the choir and properly tuned for singing, that the singer may not be forced to sing too high or too low and the organist have to play chromatics, which is not handy for every one. Further, he says pitch cannot be e':actly defined, because xoices vary; he nevertheless gives the measure above mentioned for the low F, but if a larger organ is built to include the still lower C, then this C must be of the same measurement, the reason being that a greater part of church music ends in “ grambus ” a word understood by Schlick's editor to mean the transposition of a fourth. The larger high-pitch organ will therefore be at a' 502 6. The Halberstadt organ, about which so much has been written, was, according to Praetorius (Syritagma mzmcum, Wolffenbuttel, 1618), built in 1361, and repaired or rebuilt 1495. He gives the longest pipe of this organ, B natural, as 31 Brunswick feet, and the circumference 3% ft. He further tells us this pitch was a tone, nearly a tone and a half, higher than a suitable church pitch (Chortori), for which he gives a diagram Dr Ellis had pipes (now preserved in the Royal Institution, London) made to reproduce both these pitches at 31 in wind-pressure. The Halberstadt pitch was found to be al 505 8; the C/iorton, 424-2. Ellis used mean-tone temperament IH calculating this lower pitch, but as he used just intonation for the Halberstadt, it seems preferable to substitute it for the Chorton. thus reducing it to al 422-8. Praeto1ius's Camrnerton, or chamber pitch, formulated in his diagrams for voices and instruments, is, he says, a whole tone higher, equivalent, therefore, to al 475 65. Nearly all the German organs in his time were tuned to this higher pitch. Ellis offered the suggestion of a much higher pitch for this Camrnertort in his lecture “ On the History of Musical Pitch, ” read before the Society of Arts, London (fourri. Soc. Arts, March 5, 1880), but the present writer is unable to accept it. The lower vibration number is justified by due consideration of the three divisions of the male voice, bass, tenor and alto, as given by Praetorius, whose Camrnertort very closely corresponds with Bernhardt Schmidt's Durham organ, 1663-1668, the original pitch of which has been proved by Professor Armes to have been al 474-1. The Halberstadt pitch is nearly a semitone higher, which again agrees with the statement of Praetorius, and also Schlick's high C organ. Yet it would seem there had been a still higher pitch used in the old ecclesiastical music. Upon this interesting question Praetorius is confused and difficult to understand, but he neer viavers about the transposition of a fourth. In one passage he distinctly says the old organ high pitch had been a whole tone above his Carnmertori, with which we shall find his tertia miriore combines to make the required interval. The term tertia minors, or irtferiore, is used by Praetorius to describe a low pitch, often preferred in England and the Netherlands, in Italy and in some parts of Germany. An organist, instead of transposing a whole tons down from the Carmriertori, would for the tertia rniriore have to transpose a minor third. A corroboration of this pitch is found in A. Silbermann's great organ in Strasburg minster (1713-1716), the pitch of which, taken in 1880 and reduced to 59° Fahr. (as are all pitches in this article), is al 3Q3'2. An old organ at Versailles (1789) was very near this example, al 39 5-8. Sir Frederick Gore Ouseley (vide Ellis's lecture) regarded the French tori de Chapelle as being about a minor third below the Diapason Normal, al 435, and said that most of the untouched organs in the French cathedrals were at this low pitch. Strasburg was French territory in 1713, but Silbermann's organ is not quite a whole tone below. Ellis quotes an organ at Lille, al 374-2, but no other instance of the very low Schlick pitch is recorded, although t1~ial of the French cathedral organs might perhaps result in the finding of examples. Ellis gives Dom Bédos (L'Art du facture d'orgues, Paris, 1766) as authority for a mean tone al 376-6. To return to the tertia miriore. Dr R. Smith, of Cambridge, in 1759, had the organ of Trinity College, built by Bernhardt Schmidt, lowered a whole tone, to reduce it to certain Roman pitch pipes made about 1720. His determinations of pitch by a weighted wire are not trustworthy; Ellis thinks they are not safe within four or five vibrations per second but gives a mean pitch for this organ, when altered, of al 395-2. St Michael's church at Hamburg, built as late as 1762 and unaltered in 1880, had a 17th-century pitch, al 407-9. This is about a semitone below the Diapason Normal, and a just minor third lower than the St Jacobi organ in the same city (1688), measured by Herr Schmahl, al 48Q'2. What was remarkable in this organ was that it had one stop which was an equal minor third lower, al 4II'41. The difference of a minor third, or, as we shall see later, a whole tone, had replaced the earlier fourth. Sir Frederick Gore Ouseley's comparison of the church and chamber pitches of Orlando Gibbons (vide Ellis's lecture) clearly shows the minor third in Great Britain in the first half of the 17th century. But the narrowing continued. Bernhardt Schmidt, better known in England as Father Smith, was invited about 1650 to build the organ for the Chapel Royal, Whitehall; two years later he built the organ in Durham Cathedral al 474- 1, difference a whole tone, and practically agreeing with the Carrtrnertori of Praetorius. The Hampton Court organ of 1690 shows that Schmidt had further lowered his pitch a semitone, to al 441~7. What happened at Durham was that at some subsequent date the pipes were shifted up a semitone to bring the organ into conformity with this lower pitch, with which it is probable Schmidt's organs in St Paul's and the Temple, and also Trinity College, Cambridge, agreed. This lowering tendency towards the low church pitch, and the final adoption of the latter as a general mean pitch throughout the 18th century, was no doubt influenced by the introduction of the violin, which would not bear the high tension to which the ​ lutes and viols had been strained. Harpsichords had long been preferred at the lerlia minore The Chorlon of Praetorius, al 422-8, is practically the same pitch as that of the fork the possession of which has been attributed to Handel, al 422- 5. It IS a very fa1r mean between G Silbermann's 18th-century Dresden pitch, al 415, and the organs of Renatus Harris, al 428 7. Stein tuned Mozart's piano to a fork al 421-6, and the Broadwood pianos used at the London Philharmonic Society in its first concerts (1813) were tuned to a fork 02 506-8, which gives a mean tone al 423'7.
According to Schindler (Niederrheinische Musik-Zeilung, 1855 Nos 8 and 9) and the report of the French Commission, 1859. the rise in pitch began at the Congress of Vienna in 1816, the military bands being the cause. With the improvements in wind instruments this continued, as a more brilliant effect was gained In 1823 Weber's Euryaullze is reco1'ded as having been played in Vienna at al 437 5, and in 1834 Kreutzer's Naclzllaqer at al 440. The measurements are doubtful, but the upward tendency is clear. Scheibler, by his simple and accurate tonometer, has recorded pitches in Vienna about 1834 from al 433 9 to 440-2. About that time, or it may be a few years earlier, Sir George Smart established a fork for the Philharmonic Society, al 433 2. Forks intended for this vibration number, stamped “Philharrnonic, ” were sold as late as 1846. But about that year the performing pitch of the Society had reached 452 5 Sir Michael Costa was the conductor 1846-1854, and from his acceptance of that high pitch the fork became known as C0sta's, and its inception was attributed to him, though on insufhcient grounds In 1874 a further rise in the fork to al 454 ss as instigated by Sir Charles Hallé The British army is bound by His Majesty's Rules and Regulations to play at the Philharmonic pitch, and a fork tuned to al 452-5 in 1890 is preserved as the standard for the Military Training School at Kneller Hall. But the Philharmonic Society adopted the Diapason Normal in 1896, and the military bands have not gone witl1 it. In point of fact, they are gradually going higher, and the brass bands, which are so important in the North of England and in Wales, are not behind them
It was the irrepressible upward tendency that caused the French government in 1859, acting with the advice of Halévy, Meyerbeer, Auber, Ambroise Thomas and Rossini, to establish by law the Diapason N armal. Other countries have gradually followed and, th few exceptions, the low pitch derived from the Diapason Normal may be said to prevail throughout the musical world. Great Britain has been the last to fall in, but the predominance of the low pitch, introduced at Covent Garden Opera since 1880, is assured The proprietors of Queen's Hall, London, did much for it when they undertook the alteration, at great expense, of their large concert organ, which had only just been erected In 1896 the Philharmonic Society decided upon a performing pitch, ostensibly at 68° Fahr., of al 439; and in 1899 Messrs Broadwood made a successful effort to get this vibration number accepted by their competitors in Great Britain. The high pitch remains only where there are large concert organs not yet lowered, and with the military and brass bands. The consideration of temperature as affecting the use of a standard pitch was not attended to when the French government issued its ordonnance The 15° Centigrade attached to the description of the standard fork in Paris was intended for the dehnition and verihcation of the fork only. The alteration of the fork due to heat is scarcely perceptible, but wind instruments, and particularly the organ, rise almost proportionately to the increase in temperature of the surrounding air, because sound travels at an enhanced rate as the temperature rises. The coefficient of this rise is equivalent to half a vibration (0-5) per degree Fahr per second D I Blaikley (Essay on Musical Pitch, Catalogue of the Royal Military Exhibition, Chelsea, 1890), and Victor Mahillon (Catalogue descriplif el analylique du M usée, Bruxelles, troisiéme volume, append ice, 1900) have recorded their experience of Wind instruments under changes of temperature. The French Commission, in establishing the Diapason Normal, should have chosen a temperature of 20° C. There would then have been less disturbance owing to the breath of the players and heat of the theatres or concert-rooms. It would be a great advantage to get this higher grade generally adopted. It was proposed in the Stirnm-Conferenz at Vienna in 1885, but not carried. Table III., showing orchestral pitches obtained in 1899, for the measurements of which the writer is responsible, prove how chimerical it is to hope for greater accuracy than is found between 435 and 440 vibrations a second for al, inasmuch as temperature must always be reckoned with. Table I
1495 to 1690. Pitch descending Authority. V. at 59° F. Halberstadt organ 1495 Ellis a' 505-8 Arnold Schlick, Heidelberg 151 1 Ellis 502-6 St Jacobi, Hamburg 1688-1693 Schmahl 489-2 St Catharinen, Hamburg 1543 Degenhardt 480 8 Praetorius. Cammerloa 1618 Hipkins 475 65 Durham organ 1683 Armes and Ellis 474-1 Great Franciscan organ,
Vienna c 1640 Ullmann 457-6
Hampton Court organ 1690 Ellis 441-7 Table II.
1511 to 1900. Pitch ascending Authority. V at 59° F Arnold Schlick, Heidelberg 151 1 Ellis al 377-0 Strasburg Minster. A. Silbermann
1713-1716 Stockhausen 393-2
Trinity College, Cambridge. 1759 Smith and Ellis, 395-2 Versailles organ 1789 M'Leod and Ellis 395 8 Praetorlus “ Tertia minore ” 1618 Hipkins 396-4 St Michael's, Hamburg 1762 Schmahl 4o7-9 Pascal Task1n's tuning-fork,
Paris. 1783, Lissajous 409-0
St Jacobi, Hamburg, “ Tertia
minore ” stop 1688*1693 l Schmahl 411-4 Hofcapelle, Dresden 1754 Nake 415-0 St Sophie, Dresden, G.
Silbermann 1722 ' Nake . 415-5
Freiberg. G Silbermann 1714 Nake 419-5 Seville Cathedral 1785-1790, Ellis 4 419-6 Old English tuning-fork c 1715, Ellis . 419-9 Imperial Russian Court
Church Band 1860 Nake and Ellis 421-2 Stein's tuning-fork, Vienna 1780 Nake and Ellis 421-6 Handel's tuning-fork 1751 Ellis 422-5 Praetorius Chorton 1618 Ellis andHipk1ns 422-8 Peppercorn's tuning-fork
(Broadwood) 1813 Ellis 423-5
Renatus Harris, St Andrew's,
Undershaft 1696 ' Ellis . 427-7
Renatus Harris, Newcastleon-Tyne
1670 Ions and Ellis 428 7
C MeeI'ens, proposed standard
derived from C2 512 and
favoured by Boito and
other Italian musicians 1876 Meerens . . 432-0 iS1r George Smart, Ph1lhar~
monic 1826~1834 3 Ellis . 433-2
Scheibler No. I., Vienna 1
orchestra 1834 l Scheibler 433-9
Montal's tuning-fork, Paris
opera 1829 CagnarddelaTour 434-0
Scheibler No. II, Parisopera
1834 I Scheibler . X 434-o
Re1ssiger's tuning-fork, Dresden
1826 l Nake 435 0
Paris Diapason Normal.
Ordonnance 1859 Fr. Comm. 435'0
Scheibler No. III., Paris
Conservatoire 1 834 Scheibler 435 -2 Paris Diapason Normal. f
Standard fork . 1859 Koenig 435-45
Paris opera . . 1836 Cagnard delaTour 437-0 Scheibler, Stuttgart, proposed
standard (440 at 69° F.) 1834 Scheibler 440-2 Scheibler No IV, Vienna S h I
o era 183 c eib er 0-Huflah's
tuning-fork . 184; Ellis iii g
Naples opera. San Carlo 1857 Lissajous 444'9 Society of Arts intended for .
444 (Since 1886 the
Society of Arts has advocated the
Diapason Normal)1860 Ellis l 445-7 ​
Table III.
Orchestral Pitch. 1899. Authority. V. at 68°F.
Leipzig . Bluthner a$^1$435·0
Berlin Bechstein 438·0
New York . Steinway . 438·6
Boston Chickering . 438·8
London ... . Broadwood 439·0
St Petersburg Becker 439·4
Meiningen (and Bayreuth) Mühlfeld's clarinet 439·5
Stuttgart ... A. Schiedmayer 440·0
Vienna . Bosendorfer 440·0
London. Covent Garden opera . Hipkins 440·0
Paris Erard 442·4
Verified by A. J. Hipkins. But for Leipzig a comparison with the Gewandhaus Band may be sought. (A. J. H.)