//simple melody player


//note definitions
  #define BUZPIN 8  //replace with your buzzer pin
  #define NOTE_B0 31
  #define NOTE_C1 33
  #define NOTE_CS1 35
  #define NOTE_D1 37
  #define NOTE_DS1 39
  #define NOTE_E1 41
  #define NOTE_F1 44
  #define NOTE_FS1 46
  #define NOTE_G1 49
  #define NOTE_GS1 52
  #define NOTE_A1 55
  #define NOTE_AS1 58
  #define NOTE_B1 62
  #define NOTE_C2 65
  #define NOTE_CS2 69
  #define NOTE_D2 73
  #define NOTE_DS2 78
  #define NOTE_E2 82
  #define NOTE_F2 87
  #define NOTE_FS2 93
  #define NOTE_G2 98
  #define NOTE_GS2 104
  #define NOTE_A2 110
  #define NOTE_AS2 117
  #define NOTE_B2 123
  #define NOTE_C3 131
  #define NOTE_CS3 139
  #define NOTE_DB3 139
  #define NOTE_D3 147
  #define NOTE_DS3 156
  #define NOTE_E3 165
  #define NOTE_F3 175
  #define NOTE_FS3 185
  #define NOTE_G3 196
  #define NOTE_GS3 208
  #define NOTE_A3 220
  #define NOTE_AS3 233
  #define NOTE_B3 247
  #define NOTE_C4 262
  #define NOTE_CS4 277
  #define NOTE_D4 294
  #define NOTE_DS4 311
  #define NOTE_E4 330
  #define NOTE_F4 349
  #define NOTE_FS4 370
  #define NOTE_G4 392
  #define NOTE_GS4 415
  #define NOTE_A4 440
  #define NOTE_AS4 466
  #define NOTE_B4 494
  #define NOTE_C5 523
  #define NOTE_CS5 554
  #define NOTE_D5 587
  #define NOTE_DS5 622
  #define NOTE_E5 659
  #define NOTE_F5 698
  #define NOTE_FS5 740
  #define NOTE_G5 784
  #define NOTE_GS5 831
  #define NOTE_A5 880
  #define NOTE_AS5 932
  #define NOTE_B5 988
  #define NOTE_C6 1047
  #define NOTE_CS6 1109
  #define NOTE_D6 1175
  #define NOTE_DS6 1245
  #define NOTE_E6 1319
  #define NOTE_F6 1397
  #define NOTE_FS6 1480
  #define NOTE_G6 1568
  #define NOTE_GS6 1661
  #define NOTE_A6 1760
  #define NOTE_AS6 1865
  #define NOTE_B6 1976
  #define NOTE_C7 2093
  #define NOTE_CS7 2217
  #define NOTE_D7 2349
  #define NOTE_DS7 2489
  #define NOTE_E7 2637
  #define NOTE_F7 2794
  #define NOTE_FS7 2960
  #define NOTE_G7 3136
  #define NOTE_GS7 3322
  #define NOTE_A7 3520
  #define NOTE_AS7 3729
  #define NOTE_B7 3951
  #define NOTE_C8 4186
  #define NOTE_CS8 4435
  #define NOTE_D8 4699
  #define NOTE_DS8 4978
  #define REST 0
  #define TEMPO 1
  #define STYLE 2
  #define LARGO 50
  #define ADAGIO 70
  #define MODERATO 110
  #define ALLEGRO 140
  #define PRESTO 170
  #define STACCATO 100
  #define PORTATO 50
  #define LEGATO 15

//Star Wars song defined below.  Substitute your own song if desired
const uint16_t songMelody[] = {
  TEMPO, STYLE,
  NOTE_AS4, NOTE_AS4, NOTE_AS4, NOTE_F5, NOTE_C6, REST,
  NOTE_AS5, NOTE_A5, NOTE_G5, NOTE_F6, NOTE_C6, REST,
  NOTE_AS5, NOTE_A5, NOTE_G5, NOTE_F6, NOTE_C6, REST,
  NOTE_AS5, NOTE_A5, NOTE_AS5, NOTE_G5, REST,
  NOTE_C5, NOTE_C5, NOTE_C5, NOTE_F5, NOTE_C6, REST,
  NOTE_AS5, NOTE_A5, NOTE_G5, NOTE_F6, NOTE_C6, REST,
  NOTE_AS5, NOTE_A5, NOTE_G5, NOTE_F6, NOTE_C6, REST,
  NOTE_AS5, NOTE_A5, NOTE_AS5, NOTE_G5, REST,

TEMPO, STYLE,
  NOTE_C5, NOTE_C5, NOTE_D5, REST,
  NOTE_D5, NOTE_AS5, NOTE_A5, NOTE_G5,
  NOTE_F5, NOTE_F5, NOTE_G5, NOTE_A5, NOTE_G5, NOTE_D5,
  NOTE_E5, NOTE_C5, NOTE_C5,
  NOTE_D5, NOTE_D5, NOTE_AS5, NOTE_A5, NOTE_G5, NOTE_F5,
  NOTE_C6, NOTE_G5, NOTE_G5, NOTE_G5, REST,

STYLE,
  NOTE_C5, NOTE_D5, NOTE_D5, NOTE_AS5,
  NOTE_A5, NOTE_G5, NOTE_F5, NOTE_F5, NOTE_G5, NOTE_A5,
  NOTE_G5, NOTE_D5, NOTE_E5,
  NOTE_C6, NOTE_C6, NOTE_F6, NOTE_DS6, NOTE_CS6,
  NOTE_C6, NOTE_AS5, NOTE_GS5, NOTE_G5, NOTE_F5, NOTE_C6
};

const byte songDurations[] = {
  ALLEGRO, PORTATO,
  8, 8, 8, 2, 2, 16,
  8, 8, 8, 2, 2, 16,
  8, 8, 8, 2, 2, 16,
  8, 8, 8, 2, 16,
  8, 8, 8, 2, 2, 16,
  8, 8, 8, 2, 2, 16,
  8, 8, 8, 2, 2, 16,
  8, 8, 8, 2, 8,

MODERATO, LEGATO,
  8, 16, 4, 8,
  8, 8, 8, 8,
  8, 16, 16, 8, 8, 8,
  4, 8, 8,
  4, 8, 8, 8, 8, 8,
  4, 4, 16, 8, 8,

PORTATO,
  8, 16, 4, 8,
  8, 16, 8, 8, 8, 8,
  4, 8, 4,
  16, 8, 4, 8, 4,
  8, 4, 8, 4, 8, 1
};

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(BUZPIN, OUTPUT);
  delay(1500);  //delay so speaker does not sound while program is loading
}
void playSong() {
  int songLength = sizeof(songDurations) / sizeof(songDurations[0]);
  unsigned long toneLength;
  unsigned int freq;
  float tempo = 2000;  //ms for a whole note

  unsigned long release = 50;
  for (int i = 0; i < songLength; i++) {
    toneLength = tempo / songDurations[i];
    Serial.println(toneLength);
    freq = songMelody[i];
    if (freq > 30) {
      tone(BUZPIN, freq, toneLength - release); //subtract off 50 ms so notes have a definite end
      delay(toneLength);
    }
    if (freq == REST){  //zero freq
      delay(toneLength);  //just delay
    }
    if (freq == TEMPO){ 
      tempo = float(songDurations[i]) / 60.0; //in this case songDurations[] contains the new tempo in bpm
      tempo = 4000 / tempo; 
    }
    if (freq == STYLE){
      release = songDurations[i]; //ms to release note early
    }
  }
}
void loop() {
  // put your main code here, to run repeatedly:
  playSong();
  do {
  } while (true);  //press reset to play again
}