The SPD-20 receives MIDI messages (note message, Program Change messages, Control Change Messages) on its Basic Channel. When using an external MIDI device to play the SPD-20s sound generator, set the Transmit Channel of the external MIDI device to match the Basic Channel of the SPD-20.
- Press EDIT to enter the edit mode.
- Press SELECT so the SYSTEM parameter group LED is lit.
- Use the CURSOR UP/DOWN buttons to select "BASIC CH."
- Use the PATCH/ VALUE buttons to specify the channel number (1-16).
- Press EDIT to return to the Play mode.