Bach: Concerto in C for 3 Pianos, BWV 1064 (Peter Serkin, Rudolf Serkin, Mieczyslaw Horszowski, pianos). Mozart: Concerto in E-flat for 2 Pianos, K. 365 (Peter Serkin, Rudolf Serkin); Bach: Concerto in D for 3 Pianos, BWV 1063 (Mieczyslaw Horzowski, Rudolf Serkin, Ruth Laredo, pianos; Marlboro Festival Orchestra; Alexander Schneider, conductor).