Electronic musical instrument employing tru-scale interval system for prevention of overtone collisions

In an electronic tone generator comprising:

• interface means for connecting said electronic tone generator to an electronic musical instrument such that said electronic tone generator is capable of receiving signals indicative of requested tones;
• and
• means for reproducing desired tones in accordance with said signals, wherein said electronic musical instrument normally reproduces musical notes in combination such that overtone collision results;
• the improvement wherein said reproducing means comprises means for eliminating said overtone collision, said overtone collision eliminating means comprising in turn means for reproducing musical notes in accordance with an octave transformation which assigns a predetermined interval between consecutive notes in an octave, wherein operation of said sound reproducing means in conjunction with said octave transformation results in elimination of said overtone collision.