bool trigon;
bool trigoff;
int8_t empty;
int8_t ton;
int8_t toff;
bool trig;

uint8_t _note;
uint8_t count;
uint8_t _velo;

ton = -1;
toff = -1;

if (inlet_trigger && !trig) {
  trig = 1;
  trigon = 1;
  _note = inlet_note;
}
if (!inlet_trigger)
  trig = 0;

outlet_noteOn = trigon;
outlet_noteOff = trigoff;
outlet_note = _note;
outlet_velo = _velo;
outlet_gate = bool(count);

if (!inlet_mute) {
  if (trigon) {
    ton = -1;
    int i;
    for (i = 0; i < attr_busymap.LENGTH; i++)
      if (attr_busymap.array[i] == _note)
        ton = i;
    if (ton < 0) {
      for (i = 0; i < attr_busymap.LENGTH; i++)
        if (!attr_busymap.array[i])
          ton = i;
    }
    if (ton > -1) {
      attr_trigger.array[ton] = 2;
      attr_busymap.array[ton] = _note;
    }
  }
}

if (trigoff) {
  toff = -1;
  int i;
  for (i = 0; i < attr_busymap.LENGTH; i++)
    if (attr_busymap.array[i] == _note)
      toff = i;
  if (toff > -1)
    attr_trigger.array[toff] = 1;
}

trigon = 0;
trigoff = 0;

if ((status == MIDI_NOTE_ON + (attr_channel - 1)) && (data2)) {
  if ((data1 >= attr_startNote) && (data1 <= attr_endNote)) {
    trigon = 1;
    count += 1;

    if ((data1 + attr_noteshift) > -1)
      _note = (data1 + attr_noteshift);
    _velo = data2;
  }
}
if (((status == MIDI_NOTE_ON + (attr_channel - 1)) && (!data2)) ||
    (status == MIDI_NOTE_OFF + (attr_channel - 1))) {
  if ((data1 >= attr_startNote) && (data1 <= attr_endNote)) {
    if (count)
      count -= 1;
    if ((data1 + attr_noteshift) > -1)
      _note = (data1 + attr_noteshift);
    trigoff = 1;
    _velo = 0;
  }
} else if ((status == (attr_channel - 1) + MIDI_CONTROL_CHANGE) &&
           (data1 == MIDI_C_ALL_NOTES_OFF)) {
  count = 0;
}