Johann Sebastian Bach’s second child, Wilhelm Friedemann, composed at a time of changing tastes as the baroque period moved into the classical. His innovative sonatas are characterised by harmonic boldness, romantic expressiveness and virtuosity. The Sonata in G major in particular reveals his commanding imagination in its contrasts, improvisatory character, and highly refined language. Julia Brown has been dubbed a ‘strong and sensitive interpreter of this intricate music’ (American Record Guide, Volume 4, Naxos 8573027).