I've been wondering a while Back the composer for SS2 released the original unchanged version of the score.
The music had more depth and like most games had two or more waves of audio to the music.

The released version only has about 1/2 or 3/4 of the complete audio missing extra bits and parts of the audio and background audio of the music.

I hope this makes sense. Sort of like how a song will have a Guitar and a Bass at the same time,etc.
I just wanted to know if anyone made a mod restoring this music to the game?

After the recent Screen fix mod from that French ( I think) Fellow SS2 is finally in it's full glory.

Thanks for any info you can provide.

Yeah the mod is called SHMUP. I haven't installed it, but I've read it's good. There is some info and a link on the SS2 mods topic.

http://www.gog.com/forum/system_shock_2/system_shock2_faq_patches_mods_recommendations/page1

There was a webpage awhile back, called SShock 2 fanbase or something that actually had what you asked for.
Don't know if this page still excist though. You COULD otherwise try this page (http://downloads.khinsider.com/game-soundtracks/album/system-shock-2)

Here's a link from systemshock.org that has a torrent link to the mod.

http://www.systemshock.org/index.php?topic=657

Also GoG did a mod spotlight post recently. That's where I learned about it.

http://www.gog.com/news/mod_spotlight_system_shock_2