Soundscapes: dreamy. Soundscapes: nightmarish.
Chewing tape loops. And the aural assault that is Masami Akita.
It's hard to rate this one; it really is just noise and ambient distortion. If you're open to that kind of thing, it has some names you'll perhaps know (people better known as members of Godflesh, Napalm Death, Mr Bungle) and some you may not.
WARNING: When Merzbow appears, don't be sitting beside a speaker.
Songs of Note: Scanner/Cubic Field; Umbilical Limbo/Soundtrack to ...
2 maybe, or 1, or... hell, I don't know out of 5