class App {

  /**
   * Program entry point.
   *
   * @param args command line args
   * @throws IOException                   when there is a problem with the audio file loading
   * @throws UnsupportedAudioFileException when the loaded audio file is unsupported
   */
  public static void main(String[] args) throws UnsupportedAudioFileException, IOException,
      InterruptedException {<FILL_FUNCTION_BODY>}
}

    var audio = Audio.getInstance();
    audio.playSound(audio.getAudioStream("./etc/Bass-Drum-1.wav"), -10.0f);
    audio.playSound(audio.getAudioStream("./etc/Closed-Hi-Hat-1.wav"), -8.0f);

    LOGGER.info("Press Enter key to stop the program...");
    try (var br = new BufferedReader(new InputStreamReader(System.in))) {
      br.read();
    }
    audio.stopService();
  
<no_super_class>