#define BUZZER 8

// I asked AI to create a melody.
#define REST 0
#define C4  262
#define D4  294
#define E4  330
#define F4  349
#define G4  392
#define A4  440
#define B4  494
#define C5  523
#define D5  587
#define E5  659
#define F5  698
#define G5  784
#define A5  880

int frequencies[] = 
{
  C4, E4, G4, C5, G4, E4, D4, REST,
  C4, E4, G4, A4, G4, E4, D4, REST,
  E4, G4, C5, B4, A4, G4, E4, REST,
  C4, D4, E4, G4, E4, D4, C4, REST,
  G4, A4, B4, A4, G4, E4, D4, REST,
  E4, G4, A4, C5, B4, A4, G4, REST,
  C4, E4, G4, C5, D5, C5, B4, A4,
  G4, E4, D4, C4, REST,
  C4, E4, G4, A4, G4, E4, C4, REST,
  D4, F4, A4, B4, A4, F4, D4, REST,
  E4, G4, C5, D5, E5, D5, C5, B4, A4, G4, REST,
  C5, B4, A4, G4, E4, D4, C4, REST,
  E4, G4, B4, C5, D5, C5, B4, G4,
  A4, C5, E5, D5, C5, A4, G4, REST,
  C4, E4, G4, C5, G4, E4, D4, REST,
  C4, D4, E4, F4, G4, A4, G4, E4, REST,
  E4, G4, A4, B4, A4, G4, E4, REST,
  D4, F4, A4, D5, C5, A4, F4, REST,
  E4, G4, C5, B4, A4, G4, E4, REST,
  C4, E4, G4, A4, B4, C5, B4, A4, G4, E4, D4, C4, REST
};

int durations[] = 
{
  220,220,300,420,220,220,300,120,
  220,220,300,300,220,220,420,120,
  220,220,300,220,220,220,420,120,
  220,220,220,300,220,220,420,120,
  220,220,220,220,300,220,420,120,
  220,220,220,300,220,220,420,120,
  220,220,300,300,220,220,220,220,
  300,300,300,300,180,
  220,220,220,220,220,220,420,120,
  220,220,220,220,220,220,420,120,
  220,220,300,300,300,300,300,220,220,300,180,
  220,220,220,220,220,220,420,120,
  220,220,220,220,220,220,220,220,
  220,220,220,220,220,220,420,120,
  220,220,220,220,220,220,420,120,
  220,220,220,220,220,220,220,220,120,
  220,220,220,220,220,220,220,220,220,220,220,220,180,
  220,220,220,220,220,220,220,120,
  220,220,220,220,220,220,220,120,
  220,220,220,220,220,220,220,220,220,220,220,220,180,
  220,220,220,220,220,220,220,120,
  220,220,220,220,220,220,220,120,
  220,220,220,220,220,220,220,220,220,220,220,220,180
};

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

void loop() 
{
  int n = sizeof(frequencies) / sizeof(frequencies[0]);
  for (int i = 0; i < n; i++) 
  {
    int f = frequencies[i];
    int d = durations[i];

    tone(BUZZER, f, d);
    delay(d + 15);
  }

  delay(2500);
}