#define BUZZER 2
int n_notes = 8;
int C =262;
int D =294;
int E =330;
int F =349;
int G =392;
int A =440;
int B =494;
int C_H =523;
int notes[] = {C,D,E,F,G,A,B,C_H};

void setup() {
  // put your setup code here, to run once:
pinMode(BUZZER, OUTPUT); 
  for (int i=0; i<8;i++)
  {
    tone(BUZZER,notes[i]);
    delay(500);
    noTone(BUZZER);
    delay(2);
  }
  
  
  for (int i=8; i>0;i--)
  {
    tone(BUZZER,notes[i]);
    delay(500);
    noTone(BUZZER);
    delay(2);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
   // this speeds up the simulation
}