midi_prog()

Sends a MIDI program change message to a specified MIDI channel with a given program number.

Syntax

midi_prog(channel, program_number)

Parameter	Type	Description	Comment
channel	Number	The MIDI channel (0-15).	Valid values are 0-15.
program_number	Number	The program number (0-127) to change the instrument to.	A value between 0 and 127, representing the program change (instrument patch).

Send a “program change” on channel 1, with program number 45 (a specific instrument)

midi_prog(1, 45); // returns 1 if successful

Send a “program change” on channel 0, with program number 10 (a different instrument)

midi_prog(0, 10); // returns 1 if successful