#define BUZZER 2

int n_notes = 8;
int C = 262;
int D = 294;
int E = 330;
int F = 349;
int G = 392;
int A = 440;
int B = 494;
int C_H = 523;
int notes[] = {C, D, E, F, G, A, B, C_H};

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

  for (int i = 0; i <  n_notes; i++){
    tone(BUZZER, notes[i]);
    delay(500);
    noTone(BUZZER);
    delay(2);
  }
}

void loop() {

}