//variables para play y song
char song0[12] = {60,10,120,13,92,15,113,21,74,31,85,15};
char song1[12] = {94,10,93,10,94,10,93,10,94,10,93,10};

void setup()
{
  Serial.begin(19200);    //velocidad de transmission.
  loadsong(0,6,song0);
  loadsong(1,6,song1);
}

void loop(){
  play(0);
  delay(1000);
  play(1);
  delay(1000);
}

void play(int nSong)
{
  Serial.print(141, BYTE);
  Serial.print(nSong,BYTE);
}

void loadsong(int nSong, int nNotes, char song[])
{
  int i = 0;
  Serial.print (140, BYTE);
  Serial.print (nSong, BYTE);
  Serial.print (nNotes, BYTE);
  for (i=0; i<(nNotes*2); i++)
  {
    Serial.print (song[i], BYTE);
    i++;
    Serial.print (song[i], BYTE);
  }
}