Casio AP-200 - Manual (Page 18)

18
10.2 Omni Off (7CH)
Format
Send
This message is never sent.
Receive
Receipt of any of this message releases the currently sounding voice (same as releasing the keyboard key).
10.3 Omni On (7DH)
Format
Send
This message is never sent.
Receive
Receipt of this message releases the currently sounding voice (same as releasing the keyboard key).
10.4 Mono (7EH)
Format
Send
This message is never sent.
Receive
Receipt of this message stops the currently sounding voice.
10.5 Poly (7FH)
Format
Send
This message is never sent.
Receive
Receipt of this message stops the currently sounding voice.
Message Format: BnH 7CH 00H
n: MIDI Channel Number
Message Format: BnH 7DH 00H
n: MIDI Channel Number
Message Format: BnH 7EH 00H
n: MIDI Channel Number
Message Format: BnH 7FH 00H
n: MIDI Channel Number