These songs are from one CD that was a box set of seven. It was published independently and anonymously. I think the cover just read something like Aliester Crowley: The Great Beast 666 on it, but it is not in front of me right now. This particular CD was labeled "The Gnostic Mass."
I've never been able to find this online, so I know nothing more about it. The whole CD is just one continuous piece, though it is broken into tracts. The first three are attached below.
This was the best CD of the seven. I guess this would qualify as dark ambient, perhaps.