Piano quartet in E flat major, KV 493 Piano quartet in E flat major op.44 Piano quartet in E flat major op.47 Piano quartet No. 2 in E flat major, KV 493 string quartet in b flat major, k. 458 Piano quintet in E flat major, op. 44 Second quartetto in E flat major, K. 493 piano quartet in a major,op.26 Piano Quartet in E flat,K 493 String quartet in B-flat major, G 160