int notes[] = {262,294,330,349};
int Pb1 = 2;
int Pb2 = 3;
int Pb3 = 4;
int Pb4 = 5;
void setup() {
  // put your setup code here, to run once:
  // Serial.begin(9600);
  // buttons[0] = 2;
  pinMode(Pb1, INPUT_PULLUP);
  pinMode(Pb2, INPUT_PULLUP);
  pinMode(Pb3, INPUT_PULLUP);
  pinMode(Pb4, INPUT_PULLUP); 
}

void loop() {
  // put your main code here, to run repeatedly:
  // int keyVal = analogRead(A0);
  // Serial.println(keyVal);
  // int keyVal = 0;
  // Serial.println(digitalRead(Pb1));
  if (digitalRead(Pb1) == 0) 
    {
      tone(8, notes[0]); 
    }else if (digitalRead(Pb2) == 0) 
    {
      tone(8, notes[1]); 
    }else if (digitalRead(Pb3) == 0) 
    {
      tone(8, notes[2]); 
    }else if (digitalRead(Pb4) == 0) 
    {
      tone(8, notes[3]); 
    } 
    else{
      noTone(8);

    }
    
    

//   if(keyVal == 1023){
//   tone(8, notes[0]); 
//  } else if(keyVal >= 990 && keyVal <= 1010){
//   tone(8, notes[1]); 
//  } 
//  else if(keyVal >= 505 && keyVal <= 515){
//   tone(8, notes[2]); 
//  } 
//  else if(keyVal >= 5 && keyVal <= 10){
//   tone(8, notes[3]);
//  } 
//   else{
//     noTone(8);
//   }
}