Activating Music Through Temperature

#include "pitches.h"

int blue_led = 2; //blue led connected to port 2
int yellow_led = 3; //yellow led is connected to port 3
int red_led = 4; //red led is connected to port 4
int buzzer_pin = 8; // piezo is connected to port 8

const int sensorPin = A0; //temperature sensor is connected to the A0 port
const float baselineTemp = 20.0; // the intial temperature needed

struct MusicStruct { //the notes needed for the harry potter song
  int A = 550;
  int As = 582;
  int B = 617;
  int C = 654;
  int Cs = 693;
  int D = 734;
  int Ds = 777;
  int E = 824;
  int F = 873;
  int Fs= 925;
  int G = 980;
  int Gs = 1003;
  int A2 = 1100;
  int A2s = 1165;
  int B2 = 1234;
  int C3 = 1308;
  int C3s = 1385;
  int D2 = 1555;
  
}Music;

struct LengthStruct {
  float half = 0.5;
  float one = 1.0;
  float one_half = 1.5;
  float two = 2.0;
  float two_half = 2.5;
}Length;

int tempo = 400; // the pace for the harry potter song

int melody2[] = { //the melody for the mario kart song
  NOTE_E7, NOTE_E7, 0, NOTE_E7,
  0, NOTE_C7, NOTE_E7, 0,
  NOTE_G7, 0, 0,  0,
  NOTE_G6, 0, 0, 0,
 
  NOTE_C7, 0, 0, NOTE_G6,
  0, 0, NOTE_E6, 0,
  0, NOTE_A6, 0, NOTE_B6,
  0, NOTE_AS6, NOTE_A6, 0,
  
};
//Mario main them tempo
int tempo2[] = {
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
 
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
 
};

int melody3[] = {       //Note of the pirates of the caribbean song, 0 is a rest/pulse
   NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, 
   NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, 
   NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0,
   NOTE_A4, NOTE_G4, NOTE_A4, 0,
   
   NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, 
   NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, 
   NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0,
   NOTE_A4, NOTE_G4, NOTE_A4, 0,
   
 /*  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, 
   NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5, 0, 
   NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0,
   NOTE_E5, NOTE_D5, NOTE_E5, NOTE_A4, 0,
   */
};

int tempo3[] = {         //duration of each note (in ms) Quarter Note is set to 250 ms
  125, 125, 250, 125, 125, 
  125, 125, 250, 125, 125,
  125, 125, 250, 125, 125,
  125, 125, 375, 125, 
  
  125, 125, 250, 125, 125, 
  125, 125, 250, 125, 125,
  125, 125, 250, 125, 125,
  125, 125, 375, 125, 
  
//  125, 125, 250, 125, 125, 
//  125, 125, 250, 125, 125,
//  125, 125, 250, 125, 125,
//  125, 125, 125, 250, 125,

};
void setup() {
  Serial.begin (9600); // open a serial port
  //setting up the leds and buzzer pin
  pinMode (blue_led,OUTPUT);
  digitalWrite(blue_led, LOW);
  pinMode(yellow_led,OUTPUT);
  digitalWrite(yellow_led,LOW);
  pinMode(red_led,OUTPUT);
  digitalWrite(red_led,LOW);
  pinMode(buzzer_pin,OUTPUT);
 };
void setTone(int pin, int note, int duration) { //setting up the tone
  tone(pin, note, duration);
  delay(duration);
  noTone(pin);
}

int size2 = sizeof(melody2) / sizeof(int); // making sure size2 refers to everything in melody 2
int size3 = sizeof(melody3) / sizeof(int); // making sure size 3 refers to everything in melody 3
 
void loop() {
  int sensorVal=analogRead(sensorPin);
  
  //convert the ADC reading to voltage
  float voltage = (sensorVal/1024.0) * 5.0;
 
  //convert the voltage to temperature in degrees
  float temperature = (voltage - .5) *100;
  
  
  if(temperature >= baselineTemp+2 &&  //temperature needed to trigger the blue led 
    temperature < baselineTemp+4) {
    digitalWrite (2, HIGH); // blue light on
    digitalWrite (3,LOW); // yellow light off
    digitalWrite (4, LOW); // red light off
    //melody of harry potter
    setTone(buzzer_pin, Music.B, tempo * Length.one); 
  setTone(buzzer_pin, Music.E, tempo * Length.one_half);
  setTone(buzzer_pin, Music.G, tempo * Length.half);
  setTone(buzzer_pin, Music.F, tempo * Length.one);
  setTone(buzzer_pin, Music.E, tempo * Length.two);
  setTone(buzzer_pin, Music.B2, tempo * Length.one);
  setTone(buzzer_pin, Music.A2, tempo * Length.two_half);
  setTone(buzzer_pin, Music.Fs, tempo * Length.two_half);
  
  setTone(buzzer_pin, Music.E, tempo * Length.one_half);
  setTone(buzzer_pin, Music.G, tempo * Length.half);
  setTone(buzzer_pin, Music.F, tempo * Length.one);
  setTone(buzzer_pin, Music.Ds, tempo * Length.two);
  setTone(buzzer_pin, Music.F, tempo * Length.one);
  setTone(buzzer_pin, Music.B, tempo * Length.two_half);
  delay(500000); 
  noTone(8); //stop music
    }
    else if(temperature >= baselineTemp+4 && temperature < baselineTemp+10){ //requirements for yellow led
    digitalWrite(2,LOW); // blue light is off
    digitalWrite(3,HIGH); // yellow light turns on
    digitalWrite(4,LOW); //red light is off
    
    for (int x = 0; x < size2; x++) { //this refers to the loop & size2 refers to the melody

    // to calculate the note duration, take one second divided by the note type.
    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
    int noteDuration = 1000 / tempo2[x];
    tone(8, melody2[x], noteDuration);

    // to distinguish the notes, set a minimum time between them.
    // the note's duration + 30% seems to work well:
    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // stop the tone playing:
    noTone(8);
    }
    }
  else if(temperature >= baselineTemp+10){ // temperature required for red led
    digitalWrite (2,LOW); // blue light off
    digitalWrite (3,LOW); // yellow light is off
    digitalWrite (4,HIGH); // red light turns on
 
  for (int i=0;i<size3;i++){              //size 3 is the total number of music notes in the song
  int wait = tempo3[i] * 1.5;
  tone(8,melody3[i],wait);          //tone(pin,frequency,duration)
  delay(wait);  // to pause
  noTone(8);}   // stop music
  
  }
 
}