Making backing tracks w/melody on-or-off?

[Dave Nuttall]

I made many backing tracks on the S910 where I moved the melody to channel 4 in keeping with what I was told is "standard MIDI karaoke format".   When creating the WAV versions, the S910 allowed the "muting" of any channel in playback.

I can't find the equivalent on the Genos!
How can I mute a channel on the MIDI when making a quick audio recording?

Please HELP, if possible!   
TIA.
Dave

[Janus]

Go to midi setup mute channel 4 save the set
Call it the mute channel 4 set
It is very handy
Also for singers who want no melodie
make different sets like no bass,no drum

[Dave Nuttall]

Go to midi setup mute channel 4 save the set

WHICH menu applies?

Figured it out:
MIXER SONG. doh.