"Yes, you can! In fact, I've seen some people who became skilled at interfacing with it quickly use the Sonic Converter as a special kind of musical instrument. But you can even put a melody into the crystal and have it play that. In fact, some of the finest quality converters have the ability to store sounds from either your mind or their surroundings and then convert sound to the stored sound in any desired order, so you could have background music that changes every so often to a new tune, useful for reclining langourously or for holding your own dance party without needing an orchestra."