on_loccN / on_hiccN
Sample trigger on MIDI continuous control N. This does not involve playing any MIDI notes.
Region will play when a MIDI CC64 (sustain pedal) message with 127 value is
received. So, basically, when the sustain pedal is pressed down, this region will play.
This is useful with piano pedals - in the above example,
could be used to trigger a mechanical noise sample. It would not typically be
used with hi-hat pedals, as most electronic drum kits will send a MIDI note when
the pedal hits bottom.