Quartett in B flat major op.130 Quartets in B flat major op. 130 Quartet in B flat major,op.130 Quartett in E flat major op.127 Quartet in E flat major,op.127 1-7. Quartets in B flat major op. 130 Quartett in F major op.135 1-6. Quartet in B flat major, op. 130 Quartett in C sharp minor op.131 Quartet no.1 in E flat major, op.12