Patent ID: 8779272

Claim:
A musical sound producing apparatus comprising: a sound source which produces a fundamental and a plurality of harmonics of a musical sound; a sound production timing generating section which generates sound production timings of the fundamental and the plurality of harmonics to be produced by the sound source, based on a key depression operation; a sound production instructing section which instructs the sound source to produce the fundamental and the plurality of harmonics based on the sound production timings generated by the sound production timing generating section; a key release speed acquiring section which acquires a key release speed in response to a key release operation; a muting timing changing section which changes muting timings of the fundamental and the plurality of harmonics produced by the sound source, based on the key release speed acquired by the key release speed acquiring section; and a muting instructing section which instructs the sound source to mute the fundamental and the plurality of harmonics based on the muting timings changed by the muting timing changing section.