/* --------------------  Tones Scale  -----------------------
 *                 "do re mi fa sol la ti do"
 *   Hardware Setup- 
 *    -Wire a piezo disk between digital pin 6 and Gnd
 *
 *------------------------------------------------------------*/

int piezoPin = 6;

int tones[] = {261, 294, 330, 349, 392, 440, 490, 525}; // frequencies
//------- note  C    D    E    F    G    A    B    C 

void setup() {
  pinMode(piezoPin, OUTPUT);       // Set the digital LED pin as an output
}

void loop() {
  for(int i = 0; i < 8; i=i + 1){
  tone(piezoPin, tones[i], 300);  // syntax: tone(pin, freq, duration)
    delay(400);
  }

}