Duo For Pianists I (1957) Exercise 22* (Bread And Roses, For John) (1982) for piano four hands Duet I (1960) for piano four hands Exercise 21* (Oh Freedom) (1981) for piano four hands For Kristine And Mats (From Christian)* (1994) version for piano four hands Snowdrop (1970) version for two pianos Duo For Pianists II (1958) Variations (Extracts) On The Carmans Whistle Variations Of Byrd* (1972) version for two pianos Tilbury 2 (1969) version for two pianos Exercise 20* (Acres Of Clams) (1980) for two pianos Two Pianists (1993-94) for two pianos Exercise 19* (Harmonic Tremors) (1980) for two pianos Sonata* (1957) for three pianos Braverman Music (1978) version for two pianos 70 (And More) For Alvin* (2001) version for three pianos Fragment* (2001) for two pianos