midion2 — Sends noteon and noteoff messages to the MIDI OUT port.
Sends noteon and noteoff messages to the MIDI OUT port when triggered by a value different than zero.
kchn -- MIDI channel (1-16)
knum -- MIDI note number (0-127)
kvel -- note velocity (0-127)
ktrig -- trigger input signal (normally 0)
Similar to midion, this opcode sends noteon and noteoff messages to the MIDI out port, but only when ktrig is non-zero. This opcode is can work together with the output of the trigger opcode.