int red_led = 9;
int green_led = 11;
int blue_led = 10;
int buzzer = 8;

int note_c3 = 131;
int note_d3 = 147;
int note_e3 = 165;
int note_f3 = 175;
int note_g3 = 196;
int note_gs3 = 208;
int note_a3 = 220;
int note_as3 = 233;

int quarter = 500;
int half = quarter * 2;
int dot_half = half * 1.5;
int whole = quarter * 4;
int eighth = quarter * 0.5;
int gap = quarter * .1;

void setup()
{
  pinMode(red_led, OUTPUT);
  pinMode(green_led, OUTPUT);
  pinMode(blue_led, OUTPUT);
  pinMode(buzzer, OUTPUT);
}


void loop()
{
  digitalWrite(red_led, HIGH);
  digitalWrite(green_led, LOW);
  digitalWrite(blue_led, LOW);
  tone(buzzer, note_c3);
  delay(quarter);
  noTone(buzzer);
  delay(gap);

  digitalWrite(red_led, LOW);
  digitalWrite(green_led, HIGH);
  digitalWrite(blue_led, LOW);
  tone(buzzer, note_d3);
  delay(quarter);
  noTone(buzzer);
  delay(gap);

  digitalWrite(red_led, HIGH);
  digitalWrite(green_led, LOW);
  digitalWrite(blue_led, LOW);
  tone(buzzer, note_c3);
  delay(quarter);
  noTone(buzzer);
  delay(gap);

  digitalWrite(red_led, LOW);
  digitalWrite(green_led, LOW);
  digitalWrite(blue_led, HIGH);
  tone(buzzer, note_f3);
  delay(quarter);
  noTone(buzzer);
  delay(gap);

  digitalWrite(red_led, HIGH);
  digitalWrite(green_led, HIGH);
  digitalWrite(blue_led, LOW);
  tone(buzzer, note_g3);
  delay(quarter);
  noTone(buzzer);
  delay(gap);

  digitalWrite(red_led, HIGH);
  digitalWrite(green_led, HIGH);
  digitalWrite(blue_led, HIGH);
  tone(buzzer, note_a3);
  delay(dot_half);
  noTone(buzzer);
  delay(gap);

  digitalWrite(red_led, LOW);
  digitalWrite(green_led, LOW);
  digitalWrite(blue_led, LOW);
  noTone(buzzer);
  delay(quarter);
  noTone(buzzer);
  delay(gap);

}