J.S. Bach, BWV 1001 Sonata Nø 1 in G Minor, III -Siciliana in B-Flat, Tutorial, Part I

A tutorial for guitarists or violinists discussing the structure of the Siciliana. This video, part-one, only covers the first eight measures, discussing how Bach establishes his key, and then leaves it. We can see the influence of Bach's younger days as a chorister, in the writing of this piece; there is some beautiful dovetailing of the lines, as would happen in a choir.