Please add pause note

[GoogleCodeExporter]

I think it would be nice to have a NOTE_PAUSE or NOTE_SILENT "note" so when
you could write note_player.play(NOTE_PAUSE, 100) to have a non-blocking
pause in the melody. It could be used like this:

int melody[]          = { NOTE_C4, NOTE_D4,    NOTE_E4, NOTE_PAUSE, 
                          NOTE_G4, NOTE_PAUSE, NOTE_A4, NOTE_PAUSE };
int melody_duration[] = { 100,     100,        100,     50, 
                          100,     300,        50,      250, };
int melody_length = sizeof(melody) / 2; // Melody length, for looping.

void loop()
{
  play_melody();
  do_something_else();
}

void play_melody()
{
  if(!(note_player.isPlaying())) // if the last tone has stopped
  {
    if(i<melody_length)
    {
      tone_maker.play(melody[position], melody_duration[position]);
      position++;
    }
    else
    {
      position = 0;
    }
  }
}


I could try to add it myself, but I don't have time this week, and I've
never tried to write or modify arduino libraries before... But maybe I'll
give it a try next week if it hasn't been implemented by then. 

Thanks for a great library!

Regards Martin

Original issue reported on code.google.com by martin.f...@gmail.com on 11 Nov 2009 at 6:46