semibreve rest

[pdxdjazz]

I thought he was looking for stop-time. Chord sounds on the first beat followed by silence.
Because he wrote, ”....but if i put N.C it erases the chord"

Currently, N.C. is the only iRp "rest" option. (no chord/bass, drums continue) It can be used following a double-bar sign to isolate a drum-fill.

Break/tacet (silence, no chord, no drums) has been requested, but not yet implemented.
An easy work around you can try:
insert an A-B switch or tuner pedal (with a mute function) in the output line to briefly silence iRp's audio with the tap of your foot.
)BOB