int melody[] = {392, 392, 523, 523, 440, 440, 392, 
                330, 330, 294, 292, 262, 392, 392, 523, 523,
                440, 440, 392, 330, 330, 294, 294, 262  }; //Tangga nada melody topi saya bundar
int durasi = 300; //delay 

void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT); //Mendefinisikan buzzer sebagai output
}

void loop() {
  // put your main code here, to run repeatedly:
  for (int i = 0; i < 24; i++) {
    tone(13, melody[i]); // Bunyikan Nada
    delay(durasi); // Tunggu 500 ms
    noTone(13); // Hentikan nada
    delay(durasi);
  }
}

  // G4, G4, C5, C5, A4, A4, G4,
  // E4, E4, D4, D4, C4,
  // G4, G4, C5, C5, A4, A4, G4,
  // E4, E4, D4, D4, C4