const int c = 261;
  const int d = 294;
  const int e = 329;
  const int f = 349;
  const int g = 391;
  const int gS = 415;
  const int a = 440;
  const int aS = 455;
  const int b = 466;
  const int cH = 523;
  const int cSH = 554;
  const int dH = 587;
  const int dSH = 622;
  const int eH = 659;
  const int fH = 698;
  const int fSH = 740;
  const int gH = 784;
  const int gSH = 830;
  const int aH = 880;
   
  const int buzzerPin = 8;
  const int ledPin1 = 12;
  const int ledPin2 = 13;
   
  int counter = 0;
   
  void setup()
  {
    //Setup pin modes
    pinMode(buzzerPin, OUTPUT);
    pinMode(ledPin1, OUTPUT);
    pinMode(ledPin2, OUTPUT);
  }
   
  void loop()
  {
   
    //Play first section
    firstSection();
   
    //Play second section
    secondSection();
   
    beep(f, 250);  
    beep(gS, 500);  
    beep(f, 350);  
    beep(a, 125);
    beep(cH, 500);
    beep(a, 375);  
    beep(cH, 125);
    beep(eH, 650);
   
    delay(500);
   
    //Repeat second section
    secondSection();
   

    beep(f, 250);  
    beep(gS, 500);  
    beep(f, 375);  
    beep(cH, 125);
    beep(a, 500);  
    beep(f, 375);  
    beep(cH, 125);
    beep(a, 650);  
   
    delay(650);
  }
   
  void beep(int note, int duration)
  {
    //Play tone on buzzerPin
    tone(buzzerPin, note, duration);
   
    //Play different LED depending on value of 'counter'
    if(counter % 2 == 0)
    {
      digitalWrite(ledPin1, HIGH);
      delay(duration);
      digitalWrite(ledPin1, LOW);
    }else
    {
      digitalWrite(ledPin2, HIGH);
      delay(duration);
      digitalWrite(ledPin2, LOW);
    }
   
    //Stop tone on buzzerPin
    noTone(buzzerPin);
   
    delay(50);
   
    //Increment counter
    counter++;
  }
   
  void firstSection()
  {
    beep(a, 500);
    beep(a, 500);    
    beep(a, 500);
    beep(f, 350);
    beep(cH, 150);  
    beep(a, 500);
    beep(f, 350);
    beep(cH, 150);
    beep(a, 650);
   
    delay(500);
   
    beep(eH, 500);
    beep(eH, 500);
    beep(eH, 500);  
    beep(fH, 350);
    beep(cH, 150);
    beep(gS, 500);
    beep(f, 350);
    beep(cH, 150);
    beep(a, 650);
   
    delay(500);
  }
   
  void secondSection()
  {
    beep(aH, 500);
    beep(a, 300);
    beep(a, 150);
    beep(aH, 500);
    beep(gSH, 325);
    beep(gH, 175);
    beep(fSH, 125);
    beep(fH, 125);    
    beep(fSH, 250);
   
    delay(325);
   
    beep(aS, 250);
    beep(dSH, 500);
    beep(dH, 325);  
    beep(cSH, 175);  
    beep(cH, 125);  
    beep(b, 125);  
    beep(cH, 250);  
   
    delay(350);
  }