The great pianist Paul Badura-Skoda counts the first movement of this B-flat major sonata K. 333 as “among the most beautiful … in the piano literature.” And who would want to contradict him? What a pyrotechnic display of wonderful and freely vibrant melodies in the first movement, artfully coupled with pianistic runs and flourishes!

The sublime slow movement (“Andante cantabile”) could pass as the piano reduction of a string quartet, while the concluding “Allegretto grazioso” is like the jau...