code: public void start()
    {
      try
      {
        seq = MidiSystem.getSequencer();
        //MidiSystem.getSynthesizer().
        //int[] val = {81};
        //seq.addControllerEventListener(this, val);
        seq.open();
        seq.addMetaEventListener(this);
  
        m_isStarted = true;
  
      }
      catch (IllegalStateException e)
      { e.printStackTrace(); }
      catch (Exception e)
      { e.printStackTrace(); }
    }
docs: Starts the player so that it can play tunes.
  (Retrieves the default sequencer during this phasis).