As far as the music goes here it is:
Disc 1:
Starts off slow and mellow, good dinner music?
Then it gets into some older sounding NIN but without any of the screaming and thrashing around. Still mellow enough for company.
Next, the songs get to sound familiar, but different enough that you can't put your finger on them. There are snippets from other songs but just enough to be gone before you know it was there.
There are quite a few fast then slow bits which would play very technical on a good system. I listened on my headphones, computer speakers and 2.1 system and it sounded different for all of them.
I think one of the parts I like the most is the use of the piano (or synthesized piano).
Disc 2 to follow, listening to it next.