Electronic musical instrument, difference tone output apparatus, a program and a recording medium

摘要

An electronic musical instrument according to the invention stores a difference tone identifying table which associates musical sounds of different pitches with a difference tone perceived from the musical sounds of different pitches. Receiving an instruction to simultaneously produce musical sounds of different pitches, the electronic musical instrument extracts a difference tone corresponding to the musical sounds of different pitches from the difference tone identifying table and generates then outputs a sound signal corresponding to the extracted difference tone and the musical sounds of different pitches.