import javax.sound.midi.*;

 public class MiniMiniMusicApp {

     public static void main(String[] args) {

         MiniMiniMusicApp mini = new MiniMiniMusicApp();

         mini.play();

     }

     public void play() {

         try {

             Sequencer player = MidiSystem.getSequencer();

             player.open();

             Sequence seq = new Sequence(Sequence.PPQ, 4);

             Track track = seq.createTrack();

             ShortMessage a = new ShortMessage();

             a.setMessage(144, 1, 44, 100);

             MidiEvent noteOn = new MidiEvent(a, 1);

             track.add(noteOn);

             ShortMessage b = new ShortMessage();

             b.setMessage(128, 1, 44, 100);

             MidiEvent noteOff = new MidiEvent(b, 16);

             track.add(noteOff);

             player.setSequence(seq);

             player.start();

         } catch (Exception ex) {

             ex.printStackTrace();

         }

     }

 }