Fugue for 2 violoncellos in F major G 73 Fugue for 2 violoncells in A major G 73 Fugue for 2 violoncellos in F major G 73/2 Fugue for 2 violoncells in A major G 73/5 Fugue for 2 violoncells in B-flat major G 73 Fugue for 2 violoncells in B-flat major G 73/3 Duet for 2 violins in A major WoO 34 Sonata for piano and violoncello in D major op. 58 Concerto for violoncello and orchestra in C major G 573 Sonata for Piano and Violoncello in A major op.69