#define Do 262
#define Re 294
#define Mi 330
#define Fa 349
#define So 392
#define La 440
#define Si 494
#define Do2 523
#define Re2 587
#define Mi2 659
#define Fa2 698
#define So2 784
#define La2 880
#define Si2 988


void setup() {
  pinMode(7, OUTPUT);
}

void loop() {
  int lagu[] = {
    Mi2, Mi2, Re2, Do2, Re2, Mi2, Fa2, So2, Fa2, Mi2,
    Re2, So, So, Si, Do2, Re2, Fa2, Mi2, Re2, Do2, Mi2,
    Re2, Do2
  }; // Lagu NINA BOBO

  int tempo[] = {
    80,80,80,200,80,50,50,50,80,80,
    200,50,50,50,50,50,50,80,80,80,80,
    50,80,400

  };

  int j = sizeof(lagu) / sizeof(lagu[0]);

  for (int i = 0; i < j; i++) {
    tone(7, lagu[i] );
    delay(tempo[i]);
    noTone(7);
    delay(100);
  }
}