Update: There now appear to be MP3s on the Ninetynine website; also worth checking out. You haven't lived until you've heard Wöekenender.
http://www.ninetynine.org/ :-)
There's also http://www.geocities.com/threedmelody/ or something like that, but that's a fan site, and doesn't seem to have been updated since Anatomy of Distance or something.
You once posted a link to the ninetynine website. Do you still have that URL. My attempts to locate it have been fruitless.