Note 8 — Chapter II · 1845-1848
Reading edition
Clasing was a pupil of C. F. G. Schwenke, who succeeded C. P. Emanuel Bach as cantor and music-director of St. Catharine's Church, Hamburg. On the death of Emanuel Bach in 1788, a portion of his library came into Schwenke's possession, including the score, in Sebastian Bach's own handwriting, of the great B minor Mass.