This is wonderful stuff. Seriously, have a listen.
Crust is a great opener. Make sure you have some decent speakers.
Autolysis is a joy - I love the juxtaposition of the restless initial undercurrent with the calm of the sax.
Prove is a monstrous journey, not a 'piece of music' It goes from some serene simple stuff with a very simple hook out to some pretty weird places.
Slash is just luxuriously glorious - the sax is sumptuous, and Pete wanders off on some fabulous languid lines