Track Mute - Yamaha MM8 Owner's Manual

Song Settings

Track Mute

Each "track" plays a different part of the song—melody, percussion, accompaniment, etc.
You can mute individual tracks and play the muted part on the keyboard yourself, or simply mute tracks
other than the ones you want to listen to.
To mute a track, press the appropriate track button (TRACK [1]–[8], [PATTERN])
while holding the [TRACK SELECT/MUTE] button.
Press the same button a second time to disengage track muting.
58
MM6/MM8 Owner's Manual
No track number ............ No data.
Track number without frame ............... Track contains data but is muted.
Track number with frame .................... Track contains data and is not muted.