#define NOTE_E4  330
#define NOTE_D4  294
#define NOTE_C4  262
#define NOTE_B3  494
#define NOTE_A3  440

int buzzer = 8; // Pin connected to the buzzer

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

  void loop() {
    // Mary Had a Little Lamb melody
      melody();
        delay(100); // Wait for 2 seconds before repeating
        }

        void melody() {
          int melody[] = {
              NOTE_E4, NOTE_D4, NOTE_C4, NOTE_D4, NOTE_E4, NOTE_E4, NOTE_E4,
                  NOTE_D4, NOTE_D4, NOTE_E4, NOTE_D4, NOTE_C4
                    };

                      int noteDurations[] = {
                          4, 4, 4, 4, 4, 4, 2,
                              4, 4, 4, 4, 2
                                };

                                  for (int thisNote = 0; thisNote < 12; thisNote++) {
                                      int duration = 1000 / noteDurations[thisNote];
                                          tone(buzzer, melody[thisNote], duration);
                                              int pauseBetweenNotes = duration * 1.30;
                                                  delay(pauseBetweenNotes);
                                                      noTone(buzzer);
                                                        }
                                                        }