PURPOSE: To provide spatially spread played sounds by effectively utilizing the limited number of sounding channels at a maximum.

CONSTITUTION: This electronic musical instrument is provided with a keyboard part 2 to generate key operation information, sound source circuit 4 to respectively output plural musical sound signals for respective plural sounding channels, output channels 71-74 provided less than the number of sounding channels, output channel managing memory to store information concerning the musical sound under sounding for the respective output memories 71-74, control part 1 to allocate the plural musical sound signals outputted from the plural sounding channels to any one of output channels 71-74 based on the stored contents of the output channel managing memory and new key operation information outputted from the keyboard part 2, and distribution circuit 6.