midi_note_on()

Sends a “note on” MIDI message to a specified MIDI channel with a given note number and velocity.

Syntax

midi_note_on(channel, note_number, velocity)

Parameter	Type	Description	Comment
channel	Number	The MIDI channel (0-15).	Valid values are 0-15.
note_number	Number	The note number (0-127).	Represents the MIDI note (e.g., 60 = Middle C).
velocity	Number	The velocity of the note (0.0 to 1.0).	Represents the loudness or intensity of the note.

Send a “note on” message for channel 1, note 60 (Middle C) with velocity 0.8

midi_note_on(1, 60, 0.8); // returns 1 if successful

Send a “note on” message for channel 0, note 64 (E4) with velocity 0.5

midi_note_on(0, 64, 0.5); // returns 1 if successful