public function @ax-actionscript-book-PlayList-com-example-programmingas3-playlist-Song(title:String, artist:String, year:uint, filename:String, genres:Array)
                  {
                          this._title = title;
                          this._artist = artist;
                          this._year = year;
                          this._filename = filename;
                          // genres are passed in as an array,
                          // but stored as a semicolon-separated string.
                          this._genres = genres.join(";");
                  }
  
                  // ------- Public Accessors -------
  
                  public function get title():String
                  {
                          return this._title;
                  }
                  public function set title(value:String):void
                  {
                          this._title = value;
                  }
                  
                  public function get artist():String
                  {
                          return _artist;
                  }
                  public function set artist(value:String):void
                  {
                          this._artist = value;
                  }
                  
                  public function get year():uint
                  {
                          return _year;
                  }
                  public function set year(value:uint):void
                  {
                          this._year = value;
                  }
                  
                  public function get filename():String
                  {
                          return _filename;
                  }
                  public function set filename(value:String):void
                  {
                          this._filename = value;
                  }
                  
                  public function get genres():Array
                  {
                          // genres are stored as a semicolon-separated String,
                          // so they need to be transformed into an Array to pass them back out
                          return this._genres.split(";");
                  }
                  public function set genres(value:Array):void
                  {
                          // genres are passed in as an array,
                          // but stored as a semicolon-separated string.
                          this._genres = value.join(";");
                  }