int ledky[] = {2,3,4,5,6,7,8,9,10,11};

void setup() {
  for (int i = 0; i < 10; i++){
  pinMode(ledky, OUTPUT);
}
}
void loop() {
  int sensorReading = analogRead(A0);
  int ledlevel = map(sensorReading, 0, 1023, 0, 10);
  int sound = map(sensorReading ,0 ,1023 , 350, 500);

  for (int i = 0; i < 10; i++){
    if (i < ledlevel){
      digitalWrite(ledky[i], HIGH);
    }
    else{
      digitalWrite(ledky[i], LOW);
    }
}
tone(11, sound, 100);
}