//test a0
#include <Tone.h>   
 
 //declare a variable for the Button
  const int threshold = 300;  
boolean playMusic=false;
 int btn=9;
 int btnVal;
 int btnState;
 int led1=2;
 int led2=3;
 int led3=4;
 int led4=5;
 int led5=6;
 int led6=7;
  // create an instance of the tone library
Tone speaker;
 Tone speaker2;
 Tone speaker3;
 //declare a variable to hold val

 //an array of notes
 int notes[] = {
NOTE_E4,NOTE_C4,NOTE_C3,NOTE_G3 };
 
 //an array of durations
 int durations[] = {
   500, 500, 500, 500, 500};
   
 void setup() {
   Serial.begin(9600);
   // start the music:s
speaker.begin(11);
speaker2.begin(12);
speaker3.begin(10);
   //set up your Button
pinMode(btn,INPUT);
  for(int i=2;i<8;i++){
   pinMode(i,OUTPUT);
  } 
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
  pinMode(led3,OUTPUT);
  pinMode(led4,OUTPUT);
  pinMode(led5,OUTPUT);
  pinMode(led6,OUTPUT);
   //set up btnState
   btnState=digitalRead(btn);
 }

 void loop() {
    
   
   btnVal=digitalRead(btn);
   if(btnVal!=btnState){
     if (btnVal==HIGH){
       playMusic=!
      
       playMusic;
     }
   }
 btnState=  btnVal;
 if(playMusic){
   
//my first ldr
int analVal=analogRead(A0);
Serial.println(analVal);
if(analVal<300){
  analVal=int(map(analVal,240,299,12,0));
  speaker.play(NOTE_C4+analVal*54);
  digitalWrite(led1,HIGH);
  digitalWrite(led3,HIGH);
}else{
    speaker.stop();
     digitalWrite(led1,LOW);
     digitalWrite(led3,LOW);
}

//this is my second
int analVal2=analogRead(A1);
//Serial.println(analVal2);
if(analVal2<400){
  analVal2=map(analVal2,200,399,12,0);
  speaker2.play(NOTE_C5+analVal2*96);
  digitalWrite(led2,HIGH);
  digitalWrite(led4,HIGH);
}else{
   speaker2.stop();
   digitalWrite(led2,LOW);
   digitalWrite(led4,LOW);
}
//this is my third//
int analVal3=analogRead(A2);
//Serial.println(analVal3);

if(analVal3<280){
  analVal3=map(analVal3,70,279,12,0);
  speaker3.play(NOTE_C4+analVal3*54);
  digitalWrite(led6,HIGH);
  digitalWrite(led5,HIGH);
}else{
   speaker3.stop();
   digitalWrite(led6,LOW);
   digitalWrite(led5,LOW);
}
 }else{
   speaker.stop();
    speaker2.stop();
    speaker3.stop();
    for(int i=2;i<=7;i++){
      
      
    digitalWrite(i,LOW);
    }
    

 }
void   playInst(){
  Serial.println("music");
  

   }