Dynamic microtunable MIDI interface process and device

In a musical system employing a standard MIDI interface, a process allowing a user to create notes which do not lie on the equal temperament scale, comprising:

• a. transmitting a note on signal;
• b. transmitting a first note number signal specifying a first note to be played, wherein said first note lies on said equal temperament scale;
• c. transmitting a note velocity signal;
• d. less than two milliseconds after transmitting said note on signal, transmitting a polyphonic aftertouch signal;
• e. immediately after transmitting said polyphonic aftertouch signal, transmitting a second note number signal corresponding to said first note;
• and
• f. immediately after transmitting said second note number signal, transmitting a pressure value signal commanding said musical system to shift the pitch of said first note to create a second note which does not lie on said equal temperament scale, so that said user only perceives said second note.

In a musical system employing a standard MIDI interface, wherein a musical instrument in use within said musical system only has the capability of generating notes lying on the equal temperament scale, a process allowing a user to use said musical instrument to create notes which do not lie on said equal temperament scale, comprising:

• a. selecting a first note which lies on said equal temperament scale, wherein said first note is designated to be pitch shifted to a pitch which does not lie on said equal temperament scale;
• b. when said user plays said first note, transmitting a first signal commanding the musical system to play said first note lying on said equal temperament scale;
• and
• b. less than two milliseconds after transmitting said first signal, transmitting a polyphonic aftertouch signal commanding said musical system to shift the pitch of said first note to form a second note which does not lie on said equal temperament scale, so that said user only perceives said second note.