Harvard University's Christoph Wolff describes Bach's approach to transforming works by other composers.
On the program:
Brandenburg Concerto No. 4 in G, BWV 1049 - Daniel Stepner, violin; Christopher Krueger and Roy Sansom, recorders; Boston Baroque, Martin Pearlman, conductor
Cantata BWV 12 Weinen, Klagen, Sorgen, Zagen - Daniel Taylor, alto; Mark Padmore, tenor; Peter Kooy, bass; Collegium Vocale Gent, Philippe Herreweghe, conductor
Concerto in A minor, BWV 593 (after Vivaldi) - Balint Karosi, organ (Richards, Fowkes, & Co. organ at First Lutheran Church, Boston)