int nada[] = {262, 294, 330, 349, 392, 440, 494, 523};
int buzzer = 5;

void setup() {
  pinMode(5, OUTPUT);

}

void loop() {

  for (int i = 0; i < 8; i++){
    tone(buzzer, nada[i]);
    delay(500);
    noTone(buzzer);
  }
}