The first half of the subject only consists of three pitches surrounding the tonic, but the momentum builds up instantly in the second half, expanding the narrow range to a twelfth that defies all expectations. During the development the same accompaniment of the keyboardist in Brandenburg Concerto No. 5 is employed. A piece of humble beginnings is thus turned into one of the most festive in the collection. The BACH motif occurs in the alto voice of bb.13-14. ~~~~~~~~~~ Sinfonia No. 12 in A major, BWV 798 by Johann Sebastian Bach (1685-1750) Piano: Ruoshi Sun (2025) on CLP-785 Temperament: Werckmeister