// Arduino note for complete Last Christmas by Wham

const int tempo = 120; // beats per minute

// Notes for Last Christmas
const int notes[] = {
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C5, NOTE_G5, NOTE_A5, NOTE_F5,

  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C5, NOTE_G5, NOTE_A5, NOTE_F5,

  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C5, NOTE_G5, NOTE_A5, NOTE_F5,

  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_F4,
  NOTE_C5, NOTE_G5, NOTE_A5, NOTE_F5,
};

// Durations for Last Christmas
const int durations[] = {
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,

  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,

  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,

  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,
};

void setup() {
  // Set the tempo
  Serial.begin(9600);
  Serial.println("Playing Last Christmas by Wham...");

  // Configure the tone pin
  pinMode(9, OUTPUT);
}

void loop() {
  // Play each note in the sequence
  for (int i = 0; i < sizeof(notes) / sizeof(notes[0]); i++) {
    tone(9, notes[i], durations[i]);
    delay(durations[i] * 1000 / tempo);
  }

  // Wait a short while before playing the sequence again
  delay(1000);
}