Piano Quartet in E flat,K 493 Piano quartet in E flat, op. 47 Piano Quartet in E flat,Op.47 Piano quartet No. 2 in E flat, K493 Piano quartet in E flat major, KV 493 Piano Quartet in E flat Op.47 Piano quintet in E flat, op. 44 Piano quartet in E flat major op.44 Piano quartet in E flat major op.47 Piano quartet K493 in E flat major