No, 4 pieces doesn't seem like much for a complete ouevre, but fans of John Adams' not-quite-minimalism will find plenty to enjoy here. Phrygian Gates and its little sibling, China Gates, are among his earliest works so they probably qualify as classics of the genre now. Adams certainly knows how to name a piece. American Berserk is suitably raucous, while Hallelujah Junction is driven by railroad rhythms and the sort of religious fervour found in Shaker Loops. This (for 2 pianos) is my favourite on the disc - the propulsion grinds to a halt halfway through, to give way to an increasing lyricism, rising to some glorious music before the whole thing goes off the rails in a very Ivesian conclusion.