#include 

#include 

 int notes[] = { 
  0,
  NOTE_C4,  NOTE_D4,  NOTE_E4, NOTE_F4,  NOTE_G4,  NOTE_A4,  NOTE_B4,
  NOTE_C5, NOTE_CS5, NOTE_D5,  NOTE_E5, NOTE_F5,  NOTE_G5,  NOTE_A5,  NOTE_B5,
  NOTE_C6,  NOTE_D6,  NOTE_E6, NOTE_F6,  NOTE_G6, NOTE_GS6, NOTE_A6,  NOTE_B6,
  NOTE_C7, NOTE_CS7, NOTE_D7, NOTE_DS7, NOTE_E7, NOTE_F7, NOTE_FS7, NOTE_G7, NOTE_GS7, NOTE_A7, NOTE_AS7, NOTE_B7
};
   int thisSensor;
Tone speak;
Tone speak2;
long pt;
int flex=1;

Button btn1=Button(2,PULLDOWN);
Button btn2=Button(3,PULLDOWN);
Button btn3=Button(4,PULLDOWN);
Button btn4=Button(5,PULLDOWN);
void setup(){
  
  pinMode(flex,INPUT);
  speak.begin(10);
  speak2.begin(9);
  Serial.begin(9600);
  
}
void loop(){
 if(btn1.isPressed()){
    
    speak.play(NOTE_C4);
    speak2.play(NOTE_E4);
 delay(100);
  speak.stop();
    speak2.stop();
 
  }else{
    speak.stop();
    speak2.stop();
  }
   if(btn2.isPressed()){
    speak.play(NOTE_B4);
    speak2.play(NOTE_E3);
    delay(100);
     speak.stop();
    speak2.stop();
  }else{
    speak.stop();
    speak2.stop();
  }
   if(btn3.isPressed()){
    speak.play(NOTE_A4);
    speak2.play(NOTE_G3);
    delay(100);
     speak.stop();
    speak2.stop();
  }else{
    speak.stop();
    speak2.stop();
  }

  if(btn4.isPressed()){
     speak.play(NOTE_D4);
    speak2.play(NOTE_C4);
    delay(100);
     speak.stop();
    speak2.stop();
  }else{
    speak.stop();
    speak2.stop();
  }
  // get a sensor reading:
  int sensorReading = analogRead(A1);
     Serial.println(sensorReading%40);
     // if the sensor is pressed hard enough:
     if (sensorReading <80 ){
     
       // play the note corresponding to this sensor:
       speak.play(notes[sensorReading%40]);
       speak2.play(notes[sensorReading%40]);
       delay(120);
     }else {
       // stop playing:
       speak2.stop(); 
        speak.stop(); 
     }
   }