The classes for the Java Sound demo are contained in the JavaSoundDemo.jar file.  Running the demo requires the Java 2 SDK, Standard Edition 1.3.To run the Java Sound demo :% java -jar JavaSoundDemo.jarAlthough it's not necessary to unpack the JavaSoundDemo.jar file to run the demo, you may want to extract its contents if you plan to modifyany of the demo source code. To extract the contents of JavaSoundDemo.jar, run this command from the JavaSound directory :    jar xvf JavaSoundDemo.jarThis JavaSound demo consists of a set of demos housed in one GUI framework that uses a JTabbedPane.  You can access different groups of demos by clicking the tabs at the top of the pane. There are demo groups for Juke Box, Capture & Playback, Midi Synthesizer and RhythmGroove Box.Juke Box :    A Juke Box for sampled (au, wav, aif) and midi (rmf, midi) sound     files.  Features duration progress, seek slider, pan and volume     controls.  Capture & Playback :    A Capture/Playback sample.  Record audio in different formats    and then playback the recorded audio.  The captured audio can     be saved either as a WAVE, AU or AIFF.  Or load an audio file    for streaming playback.Midi Synthesizer :    Illustrates general MIDI melody instruments and MIDI controllers.    A piano keyboard represents notes on and off.  Features capture    and playback of note on and off events. Rhythm Groove Box :    Illustrates how to build a track of short events.  Features    a tempo dial to increase or descrease the beats per minute.You can run anyone of the samples in stand-alone mode by issuing a commands like this from the JavaSound directory:        java -cp JavaSoundDemo.jar Juke         java -cp JavaSoundDemo.jar CapturePlayback        java -cp JavaSoundDemo.jar MidiSynth        java -cp JavaSoundDemo.jar GrooveWhen running the Java Sound demo as an applet these permissionsare necessary in order to load/save files and record audio :  grant {  permission java.io.FilePermission "<<ALL FILES>>", "read, write";  permission javax.sound.sampled.AudioPermission "record";  permission java.util.PropertyPermission "user.dir", "read";};The permissions need to be added to the .java.policy file.======================================================================You may send comments via the javasound-comments@sun.com alias, which is a one-way alias to Sun's Java Sound API developers, or via thejavasound-interest@sun.com alias, which is a public discussion list.