Arduino Piano

const int numberOfNotes = 8;
const int switchPins[] = {4, 5, 6, 7, 8, 9, 10, 11};
const int majorNotes[] = {
  1046, 1174, 1318,
  1396, 1567, 1760,
  1976, 2093
};
const int minorNotes[] = {
  1046, 1174, 1244,
  1396, 1567, 1661,
  1864, 2093
};
const int buzzerPin = 12;

#define notes minorNotes

void setup() {
  for(int i = 0; i < numberOfNotes; i++)
    pinMode(switchPins[i], INPUT);
  pinMode(buzzerPin, OUTPUT);
}

bool isSomeButtonPressed;
void loop() {
  isSomeButtonPressed = false;

  for(int i = 0; i < numberOfNotes; i++)
  {
    int state = digitalRead(switchPins[i]);
   // digitalWrite(buzzerPin, LOW);
    if(state == HIGH)
    {
      tone(buzzerPin, notes[i]);
      isSomeButtonPressed = true;
      break;
    }
  }

 digitalWrite(buzzerPin, LOW);
  if(isSomeButtonPressed == false)
  {
     digitalWrite(buzzerPin, LOW);
  }
}