Sonata in B flat major, KV 333 Sonata in B flat major K. 333 Sonata in B flat major, D 960 Sonata in B flat major, D. 960 Sonata in A flat major, D557 Sonata in B flat major K. 281 Sonata in B flat major K. 570 Sonata in B flat major, D960 Sonata in E flat major K. 282 Sonata in E flat major, D568