Patent ID: 8129608

Claim:
An acoustic/electric guitar that processes guitar sound signals together with pre-stored sound signals, the guitar comprising: a pre-amp for amplifying guitar sound signals at a predetermined level, controlling a tone according to user's demand and then outputting the sound signals to a dedicated guitar amp; an automatic playing unit comprising: a circuit configured to convert a music signal from an external source into at least one outer music file; a NAND flash memory for storing the at least one music file other than the guitar sound signals; a NOR flash memory for storing a program for reproducing the at least one outer music file; wherein the automatic playing unit is configured to play at least one outer music file stored in the NAND flash memory and to output the played at least one outer music file to the pre-amp; and a recording unit comprising an internal memory for storing an output of the pre-amp, wherein the pre-amp is configured to mix the guitar sound signals with electric signals of the played at least one outer music file provided from the automatic playing unit to thereby output the mixed signals as an ensemble of sound signals, and to receive signals provided from the recording unit to thereby output the ensemble of sound signals provided from the recording unit to the dedicated guitar amp; and wherein the pre-amp comprises: a pickup input unit for pickup of vibrations of guitar strings and outputting the vibrations as electric signals; a head amp for amplifying output signals of the pickup input unit at a predetermined level; an equalizer for emphasizing the guitar sound signals outputted from the head amp in treble, mid and bass, respectively, and outputting the guitar sound signals by a corresponding timbre; an audio mixer for mixing the guitar sound signals outputted from the equalizer with electric signals of various musical instruments provided from the automatic playing unit; and a pre-amp output unit for outputting output signals mixed from the audio mixer and sound signals by controlling the signals provided from the recording unit to the dedicated guitar amp.