The VS-1680 can send and receive the mixer settings and movements as MIDI
messages. You can use an external MIDI controller to control the VS-1680s
faders, and by using a MIDI sequencer to record mixer settings and movements
during playback as MIDI song data, the mixer can be controlled automatically by
the MIDI sequencer when the song is played back later. This is referred to as
CompuMix. CompuMix uses Control Change messages and Exclusive messages.
See "MIDI Channels and Controller Number"