on init
declare $lastnote_id
declare $lastnote
end on
on note
if (in_range($EVENT_NOTE,72,72))
allow_group (0)
$lastnote_id := $EVENT_ID
$lastnote := $EVENT_NOTE
end if
if ($EVENT_NOTE = 48)
note_off ($lastnote_id)
allow_group (0)
play_note ($lastnote,$EVENT_VELOCITY,0,-1)
end if
if ($EVENT_NOTE = 48)
note_off ($lastnote_id)
allow_group (1)
play_note ($lastnote,$EVENT_VELOCITY,0,-1)
end if
end on