int sensorReading = 0;

void setup()
{

  pinMode(A1, INPUT);
  pinMode(9, OUTPUT);
  pinMode(A0, INPUT);
}

void loop()
{

  sensorReading = analogRead(A1);
  // print the sensor reading so you know its range
  tone(9, 440 * pow(2.0, (constrain(int(map(sensorReading, 0, 1023, 40, 80)), 35, 127) - 57) / 12.0), 1000);
  sensorReading = analogRead(A0);
  tone(9, 440 * pow(2.0, (constrain(int(map(sensorReading, 0, 1023, 40, 80)), 35, 127) - 57) / 12.0), 1000);
  delay(10); // Delay a little bit to improve simulation performance
}