//Author: Montaj Pennant
//Title: Homework4

#define LA 0x8E0B
#define LAS 0x8612
#define LB 0x7E8C
#define LC 0x7772
#define LCS 0x70BD
#define LD 0x6A69
#define LDS 6470
#define LE 0x5ECD
#define LF 0x597B
#define LFS 0x5475
#define LG 0x4FB8
#define LGS 0x4B3E
#define MA 0x4705
#define MAS 0x4309
#define MB 0x3F46
#define MC 0x3BB9
#define MC# 0x385E
#define MD 0x3534
#define MDS 0x3238
#define ME 0x2F66
#define MF 0x2CBD
#define MFS 0x2A3A
#define MG 0x27DC
#define MGS 0x259F
#define HA 0x2382

//define the length of each note (in milliseconds)
#define DOTTED_HALF 750
#define QUARTER 250
#define HALF 500
#define WHOLE 1000

#define delayTime 50 //post-note delay to avoid perceived overlap of notes (in milliseconds)



void setup() {
  //Best Practice: Clear TCCR registers before setting-up
  TCCR1A &= 0;
  TCCR1B &= 0;

  DDRB = 0x0F; //sets PB3-PB0 as outputs

}

void loop() {
  playNote(MB, QUARTER);
  playNote(MA, QUARTER);
  playNote(LG, QUARTER);
  playNote(MA, QUARTER);
  playNote(MB, QUARTER);
  playNote(MB, QUARTER);
  playNote(MB, HALF);
  playNote(MA, QUARTER);
  playNote(MA, QUARTER);
  playNote(MA, HALF);
  playNote(MB, QUARTER);
  playNote(MD, QUARTER);
  playNote(MD, HALF);
  playNote(MB, QUARTER);
  playNote(MA, QUARTER);
  playNote(LG, QUARTER);
  playNote(MA, QUARTER);
  playNote(MB, QUARTER);
  playNote(MB, QUARTER);
  playNote(MB, QUARTER);
  playNote(MB, QUARTER);
  playNote(MA, QUARTER);
  playNote(MA, QUARTER);
  playNote(MB, QUARTER);
  playNote(MA, QUARTER);
  playNote(LG, WHOLE);



}


void playNote(int max_count, int note_size) {

TCCR1A |= 0x40; //Sets Timer 1 Channel A to toggle on Compare Match
TCCR1B |= 0x09; //Sets Timer 1 to CTC mode

OCR1A = max_count; //sets the period of the given note as the toggle point for Timer 1 Channel A

delay(note_size);

TCCR1B |= 0x08; //Turn off Timer 1's connection to the system clock

delay(delayTime);
}