int32_t _scaleVal;
float _last_note;
int32_t _out;
int32_t _last_out_note;
int _midi_notes[252];
int32_t _last_scale;
int _gate_hi_counter;
int _nb_waits;

_nb_waits = 1;

// calculate new lookup table when scale is updated
if (_last_scale != param_b12) {
  _last_scale = param_b12;
  int offset = 8; // aloloti treats 0 as E
  for (int i = 0; i < 12; i++) {
    for (int octave = 0; octave < 20; octave++) {
      if ((param_b12 & (1 << i)) << 21) {
        _midi_notes[i + octave * 12 + offset] = i + octave * 12;
      } else {
        _midi_notes[i + octave * 12 + offset] = -1;
      }
    }
  }
}

if (_last_note != inlet_note) {
  _last_note = inlet_note;

  int _initial_guess;
  int guess;

  // handle negative numbers
  _initial_guess = (inlet_note >> 21) + 120;

  for (guess = _initial_guess; guess >= 0; guess--) {
    if (_midi_notes[guess] > -1) {
      // appropiate note found
      _out = (guess - 120) << 21;
      if (_out != _last_out_note) {
        // new value on note outlet
        outlet_change = true;
        _gate_hi_counter = _nb_waits;
        _last_out_note = _out;
      }
      guess = -1; // leave loop
    }
  }
}

// set change outlet low after _nb_waits cycles
if (_gate_hi_counter-- < 1) {
  outlet_change = false;
}

outlet_note = _out;