I'm not entirely sure about the other Sonatas though. Biret does a good job with the first movement of the First Sonata (with a wonderful sense of disturbed stillness), but the final movement is not as fiery as I've heard in a now unavailable Erato recording (I think the pianist was Pierre-Laurent Aimard). And, to be honest with you, as a composition I don't care much for the Third Sonata. But this is a relatively cheap CD, and the priceless interpretation of the Second Sonata makes it a real bargain
The Third Sonata is rather opaque and ill-focused, and I've never heard anyone yet who plays it with any degree of conviction,Aimard,Rosen.And Biret here as well strives for summoning a mystery out of this indeterminate mapping of the beautiful multi-coloured score.
As a footnote: I still admire Yvonne Loriod playing the Second,she brings an enraged demeanor to the entire work short changing the mystery that may be the result in the rather surreal second and third movements.I heard Rzewski play the Second at Carnegie Hall and in Chicago in the early Seventies,and he stays fairly close to the inflammatory enragement of Loriod.