There is generated a rhythm corresponding to a designated tempo and meter
of a music piece to be recorded. Performance of a musical instrument is
started at specific timing according to the generated rhythm, and the
musical information resulting from the performance is recorded onto an MD
(Mini Disk). The address on the MD read out when the performance of the
music piece is started is retrieved as a start address of the music
piece. After the recording, the retrieved start address is recorded onto
the UTOC (User's-table-of-contents) area of the disk along with the
designated tempo and meter. By reading out the start address, tempo and
meter to calculate a measure number and start address of a desired
measure on the basis of the read out information, display of a measure
number being currently reproduced and quick access to the starting point
of any desired measure can be achieved. In applications where plural
channels are involved, part information indicative of performance parts
assigned and recorded on the individual recording channels is also
recorded onto the UTOC area. When necessary, the part information is
visually displayed. In ping-pong recording, performance parts to be mixed
are additively synthesized on the basis of the recorded part information
and then recorded onto the UTOC area as part information for a channel
where the mixed output is to be recorded.