During CPE Bach's early years, the trio sonata underwent a number of significant changes. The keyboard, especially, made the transition from a continuo role to an independent obbligato part, with the right hand on par with the treble, melodic parts. It was then not a great step to the interesting idea of a solo piece for keyboard with the accompaniment of one or more melody instruments. This is what we witness in CPE Bach's pieces for keyboard and violin recorded here. This is the debut solo recording on ATMA of the two outstanding English musicians Adrian Butterfield and Laurence Cummings.