(link might change, see below)
aguirRe: Do you know the original zip filename of it? Stupid Tenfour does not work at all (can't get the listings) and Google didn't help.
As the Steam version of Quake comes without the music here is a little gift for everyone. Please don't spread these links too much for obvious reasons.
Ogg Vorbis q8 ;)
Do any of the other add-ons on CD have soundtracks?
The Malice soundtrack is pretty great!