void setup() {
  pinMode(8, OUTPUT);

}

void loop() {
 tone(8,262); delay(500);//do
 tone(8,294); delay(500);//re
 tone(8,330); delay(500);//mi
 tone(8,349); delay(500);//fa
 tone(8,395); delay(500);//sol
 tone(8,440); delay(500);//la
 tone(8,494); delay(500);//si
 tone(8,523); delay(500);//doo

}