#include <SPI.h>
#include <SdFat.h>
#include <SdFatUtil.h> 
#include <SFEMP3Shield.h>

SdFat sd;
SFEMP3Shield MP3player;

void setup() {

  Serial.begin(9600);

  //start the shield
  sd.begin(SD_SEL, SPI_HALF_SPEED);
  MP3player.begin();

  //start playing track 1
  MP3player.playTrack(002);
}

//do something else now
void loop() {
  int sensorValue = analogRead(A0);
  sensorValue = int(map(sensorValue,0,1023,2,250));
  // example 1 - light on off 
  if (sensorValue >= 50) {
     MP3player.playTrack(002);
       Serial.println("light on!");
      }
  else if (sensorValue < 50) {
         MP3player.playTrack(001);
  Serial.println("light off!");
  }
  delay(1000);

}