String Quartet in B flat major,op.67 string quartet in b flat major, k. 458 String Quartet in E flat major, op.109 String quartets No.3 in B flat major,op.67 String Quartet no.3 in B flat major,op.67 String quartet in B-flat major, G 160 String quartet No.9 in E flat major, op.117 String quartet No.5 in B flat major, op.92 String quartet in E-flat major, G 236 String Quartet in E flat major,op.20 no.1