@midi.channel(optional)Records a MIDI channel value.
@midi.duty(optional)Specifies the 'on' part of the duty cycle as a percentage of a note’s duration.
@midi.instrname(optional)Provides a General MIDI label for the MIDI instrument.
@midi.instrnum(optional)Captures the General MIDI instrument number. Use an integer for a 0-based value.
Use an integer followed by an "o" (oh) for a 1-based value.
@midi.pan(optional)Sets the instrument’s position in a stereo field. Values of 0 and
1 both pan left, 127 and 128o both pan right, and 63 and 64o both pan to the center.
Positive percentage values pan to the right, negative ones to the left, and 0% pans
to the center.
@midi.patchname(optional)Records a non-General MIDI patch/instrument name.
@midi.patchnum(optional)Records a non-General MIDI patch/instrument number.
@midi.port(optional)Sets the MIDI port value.
@midi.track(optional)Sets the MIDI track.
@midi.volume(optional)Sets the instrument’s volume.