String Quartet in B flat major op. 67 string quartet in b flat major, k. 458 String Quintet in E flat major op. 97 Piano quartet in E flat major op.47 String quartet No.9 in E flat major, op.117 Piano quartet in E flat major op.44 String quartet in B-flat major, G 160 String quartet in E-flat major, G 236 String quartet No. 1 in B flat major, op. 11 String quartet No. 1 in E flat major, op. 12