void setup() {
  // put your setup code here, to run once:
  // put your main code here, to run repeatedly:
  for(int n = 0; n < 2; n++) {
  for(int i = 50; i < 1200; i++) {
  tone(8, i, 10);
  // delayMicroseconds(200);
  }
  }
  delay(30);
  noTone(8);
  delay(30);
}

void loop() {
  
}