int buzzer=7;
int led1=12;
int led2=13;
int DO = 262;
int RE = 294;
int MI = 330;
int FA = 349;
int SOL = 392;
int LA = 440;
int SI= 494;
int DO_ = 523;
void setup() {
  // put your setup code here, to run once:
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(buzzer, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
tone(buzzer,DO_);
digitalWrite(led1, HIGH);
delay(300);
digitalWrite(led1, LOW);
delay(300);
digitalWrite(led2, HIGH);
delay(300);
digitalWrite(led2, LOW);
delay(300);
tone(buzzer,SOL);
digitalWrite(led1, HIGH);
delay(300);
digitalWrite(led1, LOW);
delay(300);
digitalWrite(led2, HIGH);
delay(300);
digitalWrite(led2, LOW);
delay(300);
tone(buzzer,LA);
digitalWrite(led1, HIGH);
delay(300);
digitalWrite(led1, LOW);
delay(300);
digitalWrite(led2, HIGH);
delay(300);
digitalWrite(led2, LOW);
delay(300);
tone(buzzer,SI);
digitalWrite(led1, HIGH);
delay(300);
digitalWrite(led1, LOW);
delay(300);
digitalWrite(led2, HIGH);
delay(300);
digitalWrite(led2, LOW);
delay(300);
}