I. ˈbäḵ, ˈbäk biographical name
Carl Philipp Emanuel 1714-1788 son of J.S. German composer
II. biographical name
Johann Christian 1735-1782 son of J.S. German organist & composer
III. biographical name
Johann Sebastian 1685-1750 German organist & composer
IV. biographical name
Wilhelm Friedemann 1710-1784 son of J.S. German organist & composer