anchor.diff:      toggleSoundImage = toggleSoundButton.children.first;
       volumeSlider = new RangeSlider($["volumeSlider"]);
       stream = $["audioElement"];
  +    albumArt = $["albumArt"];
   
   
       setupHotKeys();
  
positive.code:   AudioElement stream;
    ImageElement toggleSoundImage;
    PlayList playlist;
  
    MediaBar.created()
      : super.created() {
  
negative.code: 
    void getAlbumArt(String artist, String album) {
      if(artist != null && album != null) {
        HttpRequest.request("http://ws.audioscrobbler.com/2.0/?method=album.getinfo&api_key=9327f98028a6c8bc780c8a4896404274&artist=${artist}&album=${album}&format=json")
          .then((HttpRequest request) {
            // Last.FM gives us a a JSON object that has another JSON object
            // in it ("album"). "album" has a list of images ("image") of
            // varius sizes. It is set up to request a "large" image, because
            // the image sizes are very ununiform. Some small images are 200px,
            // some are 32px. So why not get a bigger one?
            JsonObject obj = new JsonObject.fromJsonString(request.responseText);
            JsonObject album = obj["album"];
            List images = album["image"];
            int imageSize = 2;
            JsonObject image = images[imageSize];
  
            // Just in case Last.FM doesn't have a large image for us.
            while(image == null && imageSize > 0) {
              imageSize--;
              image = images[imageSize];
            }
  
            String url = image["#text"];
            albumArt.src = url;
          })
          .catchError((e) {
            print("error: $e");
          });
      }
      else {
        // Add wookiee image
        albumArt.src = "";
      }
    }
  }