Bach: Sonatas for Violin & Piano no. 4-6 BWV 1017-1019As Court Music Director in Cthen, Johann Sebastian Bach devoted himself primarily to instrumental music. Among the works written there were his Sonatas for violin and obbligato harpsichord BWV 10141019, which have come down to us as a complete cycle. The violinist and harpsichordist pianist are equally challenged here, and the sonatas together with Bachs flute and viola da gamba sonatas lay the foundation for the duo sonata in the modern sense, as the