Use the following steps to set the basic MIDI channel in the GR-33:
- Press [SYSTEM] to enter System mode.
- Press [PARAMETER] to select select "BASIC CHANNEL."
- Use [VALUE] dial to select the desired channel.
Value: Mono 1-11 (mono mode transmission), Poly 1-16 (poly mode transmission) - When you're' finished, press [PLAY] to return the Play mode.