void setup() {
 pinMode(3, OUTPUT);
}

 void tone (int M, float f, long t)
 {
  
  const long T=1000000/f;
  long d = T/2;
  int count = t/T;
  for (int i=0; i<count; i++)
  {
    digitalWrite (M, HIGH);
    delayMicroseconds (d);
    digitalWrite (M, LOW);
    delayMicroseconds (d);
  }
 }
void loop() 
{
  tone (3,784,200000);//g5
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,784,200000);//g5
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,784,200000);//g5
  tone (3,622.26,200000);//d#5
  //
  tone (3,830.60,200000);//g#5
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,830.60,200000);//g#5
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,830.60,200000);//g#5
  tone (3,622.26,200000);//d#5
  //
  tone (3,932.32,200000);//A#5
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,932.32,200000);//A#5
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,932.32,200000);//A#5
  tone (3,622.26,200000);//d#5
  //
  tone (3,1046.5,200000);//C6
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,1046.5,200000);//C6
  tone (3,622.26,200000);//d#5
  tone (3,587.32,200000);//d5
  tone (3,1046.5,200000);//C6
  tone (3,622.26,200000);//d#5

}