Christian Friedrich Gottlieb Schwencke

Christian Friedrich Gottlieb Schwencke (30 August 1767 – 27 October 1822)[1] was a German composer, pianist and editor of musical works.

From 1789 to 1822, he was Kantor at the Johanneum and director of church music in Hamburg, succeeding Carl Philipp Emanuel Bach.

Christian Friedrich Gottlieb received musical education from him while attending the Johanneum and the Akademisches Gymnasium in Hamburg.

From 1782, Schwencke continued his musical studies with Johann Philipp Kirnberger and Friedrich Wilhelm Marpurg in Berlin.

In a manuscript of the work's first Prelude in C major that he made, and subsequently in the printed edition by N. Simrock, the composition includes an extra measure compared with Bach's autograph.

[7] Called the Schwencke measure, it has made its way in countless later editions, including the Ave Maria setting that Charles Gounod based on it.