int buzzer = 8;

int note_c4 = 262;
int note_d4 = 294;
int note_e4 = 330;
int note_f4 = 349;
int note_g4 = 392;
int note_a4 = 440;
int note_b4 = 494;
int note_c5 = 523;

void setup()
{
  pinMode(buzzer, OUTPUT);
}
 
void loop()
{  
  // play c4 for 1 second
  tone(buzzer, note_c4);
  delay(1000);
  // play d4 for 1 second
  // play e4 for 1 second
  // play f4 for 1 second
  // play g4 for 1 second
  // play a4 for 1 second
  // play b4 for 1 second
  // play c5 for 1 second
  
}