Fugue in C minor for 2 Pianos,K 426 Suite in F Sharp minor for 2 pianos, Op. 6 Concerto in D minor for 2 pianos and orchestra Adagio & Fugue in C minor for Strings,K.546 Adagio and fugue in C minor for strings K. 546 Concerto in D minor for two pianos & orchestra Sonata in D for 2 Pianos,K 448 Quintet in G minor foe piano and strings