I have been learning Arduino for a few days so I tried modifying an existing project. This gist was based on https://gist.github.com/nicksort/4736535

Blue_Bird.ino

const int d4s = 311;
const int e4 = 330;
const int f4s = 370;
const int g4s = 415;
const int a4 = 440;
const int b4 = 494;
const int c5s = 523;

const int buzzerPin = 4;
const int ledPinB = 12;
const int ledPinR = 13;

int counter =0;

void setup() {
  // put your setup code here, to run once:
  pinMode(buzzerPin, OUTPUT);
  pinMode(ledPinB, OUTPUT);
  pinMode(ledPinR, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  firstSection();
  secondSection();
  firstSection();
  lastSection();

}
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(ledPinB, HIGH);
    delay(duration);
    digitalWrite(ledPinB, LOW);
  }else
  {
    digitalWrite(ledPinR, HIGH);
    delay(duration);
    digitalWrite(ledPinR, LOW);
  }
 
  //Stop tone on buzzerPin
  noTone(buzzerPin);
 
  delay(50);
 
  //Increment counter
  counter++;
}
void firstSection (){
  
  beep(d4s, 500);
  beep(f4s, 250);
  beep(g4s, 250);
  beep(a4, 1000);
  beep(g4s,500);
  beep(f4s, 1000);

  delay(250);
}
void secondSection (){
  
  beep(d4s, 250);
  beep(f4s, 250);
  beep(g4s, 250);
  beep(a4, 1000);
  beep(b4,500);
  beep(a4, 250);
  beep(b4,500);
  beep(c5s, 500); 

  delay(250);
}
void lastSection (){
  
  beep(f4s, 250);
  beep(c5s, 250);
  beep(b4, 250);
  delay(250);
  
  beep(f4s, 250);
  beep(c5s, 250);
  beep(b4, 250);
  delay(250);

  beep(e4, 500);
  beep(e4, 250);
  delay(250);

  beep(f4s, 250);
  beep(f4s, 1000);
  delay(250);
}