code: public void queueFile (File file, boolean loop)
      {
          try {
              queueURL(file.toURI().toURL(), loop);
          } catch (MalformedURLException e) {
              log.warning("Invalid file url.", "file", file, e);
          }
      }
docs: Adds a file to the queue of files to play.
  
  @param loop if true, play this file in a loop if there's nothing else
  on the queue