[HELP] Coding with Piezo speaker and Fire sensor

I have the code for the fire sensor which is listed below. I want this to happen:

When fire detected (close long or medium) i want a piezo to ring.

Fire sensor code:

/* Flame Sensor analog example.
Code by Reichenstein7 (thejamerson.com)

Flame Sensor Ordered from DX ( http://www.dx.com/p/arduino-flame-sensor-for-temperature-
detection-blue-dc-3-3-5v-118075?tc=USD&gclid=CPX6sYCRrMACFZJr7AodewsA-Q#.U_n5jWOrjfU )

To test view the output, point a serial monitor such as Putty at your arduino. 
*/

// lowest and highest sensor readings:
const int sensorMin = 0;     // sensor minimum
const int sensorMax = 1024;  // sensor maximum

void setup() {
  // initialize serial communication @ 9600 baud:
  Serial.begin(9600);  
}
void loop() {
  // read the sensor on analog A0:
   int sensorReading = analogRead(A0);
  // map the sensor range (four options):
  // ex: 'long int map(long int, long int, long int, long int, long int)'
   int range = map(sensorReading, sensorMin, sensorMax, 0, 3);
  
  // range value:
  switch (range) {
  case 0:    // A fire closer than 1.5 feet away.
    Serial.println("** Close Fire **");
    break;
  case 1:    // A fire between 1-3 feet away.
    Serial.println("** Distant Fire **");
    break;
  case 2:    // No fire detected.
    Serial.println("No Fire");
    break;
  }
  delay(1);  // delay between reads
}

Here is the code for the piezo speaker:

void setup()  { 
  // declare pin 9 to be an output:
  pinMode(9, OUTPUT);
  beep(50);
  beep(50);
  beep(50);
  delay(1000);
} 

void loop()  { 
  beep(200); 
}

void beep(unsigned char delayms){
  analogWrite(9, 20);      // Almost any value can be used except 0 and 255
                           // experiment to get the best tone
  delay(delayms);          // wait for a delayms ms
  analogWrite(9, 0);       // 0 turns it off
  delay(delayms);          // wait for a delayms ms   
}

Thank you very much!

You could change this part:

  // range value:
  switch (range) {
  case 0:    // A fire closer than 1.5 feet away.
    Serial.println("** Close Fire **");
    break;
  case 1:    // A fire between 1-3 feet away.
    Serial.println("** Distant Fire **");
    break;
  case 2:    // No fire detected.
    Serial.println("No Fire");
    break;
  }

to this:

if (range < 3) {
  beep(500)
}

And then add the beep() function at the end of your sketch.