A few months ago, a friend played me some remarkable recordings made by scientists at the Jodrell Bank Observatory, who had captured and made audible the "sound" of stars. I just discovered that these are available, with lots more information about how the recordings were made, on a recent edition of the observatory's JodCast:
http://www.jodcast.net/archive/200808Extra/
Particularly mesmerising is the sound of material falling into a black hole (just after 23 minutes in on the podcast), which someone described as "God playing the bongos"!