Quartets in B flat major op. 130 Quartett in B flat major op.130 Quartet in B flat major,op.130 Quartett in E flat major op.127 1-7. Quartets in B flat major op. 130 Quartet in E flat major,op.127 1-6. Quartet in B flat major, op. 130 Quartet in F major op. 135 Sonata in A flat major op. 110 1-4. Quartet in E flat major, op. 127