An electronic musical instrument is constructed to treat music information
associated to music tones, and can be coupled to a mobile wireless
terminal set communicable with a public communication network. In the
electronic musical instrument, a main block processes music information
for generation of music tones, the processed music information being
transferable for effecting remote generation of the music tones. A memory
block is controlled for memorizing music information. A control block
controls the memory block to memorize the processed music information and
to feed the memorized music information to the mobile wireless terminal
set for transfer of the music information through the public
communication network. Further, the control block feeds music information
received by the mobile wireless terminal set through the public
communication network to the memory block, and controls the memory block
to memorize therein the fed music information. The main block processes
the memorized music information for generation of music tones.