Violin sonata in B flat, K378 Violin Sonata in B flat,K.378 Violin Sonata in E flat,Op.18 Violin Sonata in E flat, Op.11 Violin sonata in E flat op. 18 Violin sonata in B major, K. 378 Violin sonata in E flat major, op. 18 Violin sonata in E flat major, K. 380 Violin sonata in B flat major, K. 454 Violin sonata in E-flat major, op. 18