I misread your question. Sorry.
*Edit* Now that I understand which song you meant I've been trying to look it up. I really liked it, it has a sorta "Nox Arcana" vibe to it. But am coming up empty finding it.
Alien (Film)
Re: Alien (Film)
You could try asking Chuck on Twitter, or maybe sending him a forum pm. Let us know if you get an answer; it's a nice bit of music, and I'd like to hear the whole thing.