void music_simpsons(){
  /* tone(float freq, float length(sec)) */
  float rate = .7;
  float octave = 1.5;

  tone(528.0*octave, .75*rate);
  tone(660.0*octave, .25*rate);
  sleep(.25*rate);
  tone(733.33*octave, .25*rate);
  sleep(.25*rate);
  tone(880.0*octave, .25*rate);
  tone(792.0*octave, .75*rate);
  tone(660.0*octave, .25*rate);
  sleep(.25*rate);
  tone(528.0*octave, .25*rate);
  sleep(.25*rate);
  tone(440.0*octave, .25*rate);
  tone(733.3*octave/2.0, .22*rate);
  sleep(.03*rate);
  tone(733.3*octave/2.0, .22*rate);
  sleep(.03*rate);
  tone(733.3*octave/2.0, .25*rate);
  tone(792.0*octave/2.0, rate);
  sleep(.25*rate);
  tone(733.3*octave/2.0, .22*rate);
  sleep(.03*rate);
  tone(733.3*octave/2.0, .22*rate);
  sleep(.03*rate);
  tone(733.3*octave/2.0, .25*rate);
  tone(792.0*octave/2.0, .25*rate);
  tone(462.0*octave, .5*rate);
  tone(528.0*octave, .22*rate);
  sleep(.03*rate);
  tone(528.0*octave, .22*rate);
  sleep(.03*rate);
  tone(528.0*octave, .22*rate);
  sleep(.03*rate);
  tone(528.0*octave, .25*rate);
}

void music_mario(){
  float rate = .7;
  float octave = 1.0;

  tone(528.0*octave, rate/6.0);
  tone(528.0*octave*2.0, rate/6.0);
  tone(440.0*octave, rate/6.0);
  tone(440.0*octave*2.0, rate/6.0);
  tone(462.0*octave, rate/6.0);
  tone(462.0*octave*2.0, rate/6.0);

  sleep(2.0*rate);

  tone(528.0*octave, rate/6.0);
  tone(528.0*octave*2.0, rate/6.0);
  tone(440.0*octave, rate/6.0);
  tone(440.0*octave*2.0, rate/6.0);
  tone(462.0*octave, rate/6.0);
  tone(462.0*octave*2.0, rate/6.0);

  sleep(2.0*rate);

  tone(704.0*octave/2.0, rate/6.0);
  tone(704.0*octave, rate/6.0);
  tone(586.667*octave/2.0, rate/6.0);
  tone(586.667*octave, rate/6.0);
  tone(616.0*octave/2.0, rate/6.0);
  tone(616.0*octave, rate/6.0);

  sleep(2.0*rate);

  tone(704.0*octave/2.0, rate/6.0);
  tone(704.0*octave, rate/6.0);
  tone(586.667*octave/2.0, rate/6.0);
  tone(586.667*octave, rate/6.0);
  tone(616.0*octave/2.0, rate/6.0);
  tone(616.0*octave, rate/6.0);
}