Playing around with timers and tones.

Using Arduino Audio
18

BIG progress...
small question, can't the 2 loops be merged into one? if so is it faster/smaller footprint?

  uint8_t voice = 255;
  uint8_t order = 255;
  for (char v=0; v<MAX_V/2; v++)
  {
    if (voiceNote[v] == 0)
    {
      voice = v;
      break;
    }
    if (voiceOrder[v] < order)
    {
      order = voiceOrder[v];
      voice = v;
    }    
  }