Composed in the late 1780s, these sonatas are large-scale pieces as advanced as anything that Haydn and Mozart were turning out at the time. The E major work lasts nearly half an hour, and in its size alone it anticipates the large early sonatas of Beethoven. Both pieces have three movements, one of which is a big theme and variations (the finale in the E major sonata, the middle movement in the E-flat piece). Ronald Brautigam plays this music with uncommon ebullience and enthusiasm, in particular characterizing these lengthy variation sets with unfailing intelligence and imagination. This, combined with the bright, sweet timbre of his fortepiano, gives the music the same immediate appeal that typifies his Haydn piano music cycle.

The other pieces are less important but nevertheless exude charm and personality. Both the Rondo in F major and the Scherzo con Variazioni are relatively substantial single movements, and the Swedish Dance will pique the interest of folk-music enthusiasts--its principal tune sounds remarkably like a sort of simplified Haydn rondo. The other two pieces, Zwey Neue Kuriose Menuetten and the Larghetto, are both tiny chips from the master's workbench. This is one of the most purely delightful discs of classical keyboard music to come along in quite a while, a discovery whose musical substance far exceeds its curiosity value. [7/26/2006]