Sonata in E flat,K 380,374f Sonata in E flat major,K.380(374f) Sonata in B flat,D 960 Sonata in B flat,K 10 Sonata in B flat,K 31 Sonata in B flat,K 454 Sonata in B flat,K 570 Sonata in B flat,K 8 Sonata in B flat,K.378 Sonata in E flat, KV 380