// The Arduino Mega 2560 has a total of 3 timers, only 2 of which can be used to
// play a tone, the 3rd must beused for delay and other clock functions on the board

#include "Multi_Tone.h" // this is needed to gain access to the additional clocks

#define BUZZER1 8 // defines the pin number for the first buzzer
#define BUZZER2 9 // defines the pin number for the second buzzer

Tone freq1; // sets up the clock for the first buzzer
Tone freq2; // sets up the clock for the second buzzer

int melody[] =  {NOTE_E4, NOTE_D4, NOTE_C4, NOTE_D4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_D4, 
                 NOTE_D4, NOTE_D4, NOTE_D4, NOTE_E4, NOTE_G4, NOTE_G4, NOTE_G4, NOTE_E4, NOTE_D4, 
                 NOTE_C4, NOTE_D4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_D4, NOTE_D4, NOTE_E4, 
                 NOTE_D4, NOTE_C4, NOTE_C4, NOTE_C4, NOTE_C4, }; // the melody line of the music

int harmony[] = {NOTE_C3, NOTE_C3, NOTE_G3, NOTE_G3, NOTE_C3, NOTE_C3, NOTE_G3, NOTE_G3, NOTE_G3, 
                 NOTE_G3, NOTE_B3, NOTE_B3, NOTE_C3, NOTE_C3, NOTE_G3, NOTE_G3, NOTE_C3, NOTE_C3, 
                 NOTE_G3, NOTE_G3, NOTE_C3, NOTE_C3, NOTE_G3, NOTE_G3, NOTE_G3, NOTE_G3, NOTE_B3, 
                 NOTE_B3, NOTE_C3, NOTE_C3, NOTE_C3, NOTE_C3,}; // the harmony line of the music

// this sets how long each beat sounds for, all of the tone are played for the same base length 
// of time, to change the lenth of the note, more of the same tone are played, modifying this 
// changes how fast the song is played
int beat = 250; 

void setup() 
{
  freq1.begin(BUZZER1); // sets up the buzzer to be used with the Multi_Tone library
  freq2.begin(BUZZER2); // sets up the buzzer to be used with the Multi_Tone library

  for (int count = 0; count < 32; count++) //loops through all of the beats in the song
  {
    freq1.play(melody[count]); // plays the melody note based on the count variable from the for loop
    freq2.play(harmony[count]); // plays the corisponding harmony note
    delay(beat); //pauses the code to play the tone for the desired length
  }
  
  freq1.stop(); // turns off the first buzzer DO NOT USE freq#.play(0)
  freq2.stop(); // turns off the second buzzer DO NOT USE freq#.play(0)
}

void loop() 
{freq1.play(65535);
}