This sonata in B flat major was only recently identified as a sonata by Bitti, since its manuscript in Dresden lacks the name of the composer. Bitti’s authorship is not in doubt, however, especially since this sonata shares its fourth movement with the first of the ‘London’ sonatas. The sonata is in a style that mixes ‘church’ and ‘chamber’ elements. Particularly attractive is the second movement, an allegro in 6/8 metre with a distinctly ‘popular’ feel.