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					@ -5,7 +5,6 @@
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					#include <avr/io.h>
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					#define PI 3.14159265
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					#define CHANNEL OCR1C
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					void delay_us(int count) {
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					  while(count--) {
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					@ -16,91 +15,17 @@ void delay_us(int count) {
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					int voices = 0;
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					double frequency = 0;
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					int volume = 0;
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					int position = 0;
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					double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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					int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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					void beeps() {
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					 //    DDRB |= (1<<7);
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					 //    PORTB &= ~(1<<7);
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					 //    // Use full 16-bit resolution. 
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					 //    ICR1 = 0xFFFF;
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					 //    // I could write a wall of text here to explain... but TL;DW
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					 //    // Go read the ATmega32u4 datasheet.
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					 //    // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
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					 //    // Pin PB7 = OCR1C (Timer 1, Channel C)
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					 //    // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
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					 //    // (i.e. start high, go low when counter matches.)
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					 //    // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
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					 //    // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
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					 //    TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
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					 //    TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
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					 //    // Turn off PWM control on PB7, revert to output low.
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					 //    // TCCR1A &= ~(_BV(COM1C1));
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					 //    // CHANNEL = ((1 << level) - 1);
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					 //    // Turn on PWM control of PB7
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					 //    TCCR1A |= _BV(COM1C1);
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					 //    // CHANNEL = level << OFFSET | 0x0FFF;
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					 //    // CHANNEL = 0b1010101010101010;
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					 //    float x = 12;
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					 //    float y = 24;
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					 //    float length = 50;
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					 //    float scale = 1;
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					 // //    int f1 = 1000000/440;
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					 // //    int f2 = 1000000/880;
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						// // for (uint32_t i = 0; i < length * 1000; i++) {
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						// // 	// int frequency = 1/((sin(PI*2*i*scale*pow(2, x/12.0))*.5+1 + sin(PI*2*i*scale*pow(2, y/12.0))*.5+1) / 2); 
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						// // 	ICR1 = f1; // Set max to the period
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						// // 	OCR1C = f1 >> 1; // Set compare to half the period
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					 // //     	// _delay_us(10);
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						// // }
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					 //    int frequency = 1000000/440;
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						// ICR1 = frequency; // Set max to the period
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						// OCR1C = frequency >> 1; // Set compare to half the period
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					 //    _delay_us(500000);
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					 //    TCCR1A &= ~(_BV(COM1C1));
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					 //    CHANNEL = 0;
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					play_notes();
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						// play_note(55*pow(2, 0/12.0), 	1);
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						// play_note(55*pow(2, 12/12.0), 	1);
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						// play_note(55*pow(2, 24/12.0), 	1);
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						// play_note(55*pow(2, 0/12.0), 	1);
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						// play_note(55*pow(2, 12/12.0), 	1);
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						// play_note(55*pow(2, 24/12.0), 	1);
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						// play_note(0, 					4);
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						// play_note(55*pow(2, 0/12.0), 	8);
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						// play_note(55*pow(2, 12/12.0), 	4);
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						// play_note(55*pow(2, 10/12.0), 	4);
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						// play_note(55*pow(2, 12/12.0), 	8);
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						// play_note(55*pow(2, 10/12.0), 	4);
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						// play_note(55*pow(2, 7/12.0), 	2);
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						// play_note(55*pow(2, 8/12.0), 	2);
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						// play_note(55*pow(2, 7/12.0), 	16);
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						// play_note(0, 					4);
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						// play_note(55*pow(2, 3/12.0), 	8);
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						// play_note(55*pow(2, 5/12.0), 	4);
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						// play_note(55*pow(2, 7/12.0), 	4);
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						// play_note(55*pow(2, 7/12.0), 	8);
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						// play_note(55*pow(2, 5/12.0), 	4);
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						// play_note(55*pow(2, 3/12.0), 	4);
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						// play_note(55*pow(2, 2/12.0), 	16);
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					bool sliding = false;
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					#define RANGE 1000
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					volatile int i=0; //elements of the wave
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					void beeps() {
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					    play_notes();
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					}
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					void send_freq(double freq, int vol) {
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					@ -114,6 +39,7 @@ void stop_all_notes() {
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					    TCCR3A = 0;
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					    TCCR3B = 0;
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					    frequency = 0;
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					    volume = 0;
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					    for (int i = 0; i < 8; i++) {
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					        frequencies[i] = 0;
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					@ -135,21 +61,28 @@ void stop_note(double freq) {
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					        }
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					    }
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					    voices--;
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					    if (voices < 0)
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					        voices = 0;
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					    if (voices == 0) {
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					        TCCR3A = 0;
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					        TCCR3B = 0;
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					        frequency = 0;
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					        volume = 0;
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					    } else {
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					        double freq = frequencies[voices - 1];
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					        int vol = volumes[voices - 1];
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					        if (frequency < freq) {
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					            sliding = true;
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					            for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
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					                send_freq(f, vol);
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					            }
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					            sliding = false;
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					        } else if (frequency > freq) {
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					            sliding = true;
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					            for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
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					                send_freq(f, vol);
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					            }
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					            sliding = false;
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					        }
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					        send_freq(freq, vol);
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					        frequency = freq;
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					@ -157,6 +90,115 @@ void stop_note(double freq) {
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					    }
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					}
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					void init_notes() {
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					    // TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (1 << WGM10);
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					    // TCCR1B = (1 << COM1B1) | (0 << COM1A0) | (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
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					    // DDRC |= (1<<6); 
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					    // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
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					    // TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
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					    // ICR3 = 0xFFFF; 
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					    // OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element
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					    // cli();
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					    // /* Enable interrupt on timer2 == 127, with clk/8 prescaler. At 16MHz,
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					    //    this gives a timer interrupt at 15625Hz. */
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					    // TIMSK3 = (1 << OCIE3A);
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					    // /* clear/reset timer on match */
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					    // // TCCR3A = 1<<WGM31 | 0<<WGM30;  CTC mode, reset on match 
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					    // // TCCR3B = 0<<CS32 | 1<<CS31 | 0<<CS30; /* clk, /8 prescaler */
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					    // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
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					    // TCCR3B = (0 << WGM33) | (0 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
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					    // TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
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					    // TCCR1B = (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
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					    // // SPCR = 0x50;
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					    // // SPSR = 0x01;
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					    // DDRC |= (1<<6);
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					    // // ICR3 = 0xFFFF; 
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					    // // OCR3A=80;
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					    // PORTC |= (1<<6);
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					    // sei();
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					}
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					// #define highByte(c) ((c >> 8) & 0x00FF)
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					// #define lowByte(c) (c & 0x00FF)
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					ISR(TIMER3_COMPA_vect) {
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					    if (ICR3 > 0 && !sliding) {
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					        switch (position) {
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					            case 0: {
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					                int duty = (((double)F_CPU) / (frequency));
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					                ICR3 = duty; // Set max to the period
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					                OCR3A = duty >> 1; // Set compare to half the period
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					                break;
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					            }
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					            case 1: {
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					                int duty = (((double)F_CPU) / (frequency*2));
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					                ICR3 = duty; // Set max to the period
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					                OCR3A = duty >> 1; // Set compare to half the period
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					                break;
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					            }
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					            case 2: {
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					                int duty = (((double)F_CPU) / (frequency*3));
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					                ICR3 = duty; // Set max to the period
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					                OCR3A = duty >> 1; // Set compare to half the period
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					                break;
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					            }
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					        }
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					        position = (position + 1) % 3;
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					    }
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					//     /* OCR2A has been cleared, per TCCR2A above */
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					//     // OCR3A = 127;
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					//     // pos1 += incr1;
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					//     // pos2 += incr2;
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					//     // pos3 += incr3;
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					//     // sample = sinewave[highByte(pos1)] + sinewave[highByte(pos2)] + sinewave[highByte(pos3)];
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					//     // OCR3A = sample;
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					//     OCR3A=pgm_read_byte(&sinewave[pos1]);
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					//     pos1++;
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					//     // PORTC &= ~(1<<6);
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					//     /* buffered, 1x gain, active mode */
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					//     // SPDR = highByte(sample) | 0x70;
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					//     // while (!(SPSR & (1<<SPIF)));
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					//     // SPDR = lowByte(sample);
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					//     // while (!(SPSR & (1<<SPIF)));
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					//     // PORTC |= (1<<6);
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					}
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					void loop() {
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					}
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					// ISR(TIMER1_COMPA_vect)
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					// {
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					//     // if (i<(sizeof(wave)/sizeof(int))) //don't exceed ends of vector... sizeof(wave)
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					//     if (i<pow(2, 10)) //don't exceed ends of vector... sizeof(wave)
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					//     {
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					//         OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element
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					//         // int x = 1;
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					//         // int y = 5;
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					//         // OCR3A = (int) (round(sin(i*440*pow(2, x/12.0))*.5+.5 + sin(i*440*pow(2, y/12.0))*.5+.5) / 2 * ICR3); 
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					//         i++; //increment
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					//     }
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					//     else i=0; //reset
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					// }
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					void play_note(double freq, int vol) {
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					    if (freq > 0) {
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