2 pianos Performances Concert 33 Thursday, February 25, 1971 Concert 45 [Orford] Wednesday, August 2, 1972 Concert 48 [Bruxelles] Tuesday, January 16, 1973 Concert 49 [Paris] Friday, January 19, 1973
2 pianos Performances Concert 33 Thursday, February 25, 1971 Concert 45 [Orford] Wednesday, August 2, 1972 Concert 48 [Bruxelles] Tuesday, January 16, 1973 Concert 49 [Paris] Friday, January 19, 1973