Arduino code for creating an animatronic scene

AnimatronicMusicScene.ino

#include <SPI.h>
#include <Adafruit_VS1053.h>
#include <SD.h>


// These are the pins used for the music maker shield
const int SHIELD_RESET = -1;    // VS1053 reset pin (unused!)
const int SHIELD_CS = 7;        // VS1053 chip select pin (output)
const int SHIELD_DCS = 6;       // VS1053 Data/command select pin (output)
const int DREQ = 3;             // VS1053 Data request, ideally an Interrupt pin
const int CARDCS = 4;           // Card chip select pin

// Pins for door decorating music and mechanisms (buttons, motors, servos, etc.)
const int startButtonPin = 2;   // pin for button to start the scene
const int motorPin = 5;        // motor or servo control

int sceneState = LOW;           // initialize the scene off
int startButtonState;           // create variable to store start button state
int prevStartButtonState = LOW; // initialize button to off

long lastStart = 0;             // last time the scene was triggered
long debounce = 200;            // debounce time to avoid multiple presses

// Initialize Adafruit mp3 shield
Adafruit_VS1053_FilePlayer musicPlayer =
  Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS);

void setup() {
  // Set up the button and output pins
  pinMode(startButtonPin, INPUT); // declare the start button as input
  pinMode(motorPin, OUTPUT); // declare the motor pin as output

  musicPlayer.setVolume(20, 20); // Set the left/right channel volume (lower is louder)
}

void loop() {
  // Create the program that will run as the song plays
  start = digitalRead(startButtonPin);

  if (start == HIGH && prevStartButtonState == LOW && millis() - time > debounce) {
    if (sceneState == LOW)
      musicPlayer.playFullFile("track001.mp3") // name must be 8 letters dot 3 letters

      while (musicPlayer.playingMusic) {
        // Activate motors and servos as appropriate here
        sceneState = HIGH;
        digitalWrite(motorPin, sceneState);
      }

    sceneState = LOW;
    time = millis();
  }

  digitalWrite(motorPin, sceneState);
  prevStartButtonState = start;
}