Example S14.1 S14.1. (a) Invention in F, BWV 779, mm. 1–4; (b) C. P. E. Bach, Sonata in B-flat, W. 62/1, mvt. 1, mm. 1–4 https://schulenbergmusic.org/wp-content/uploads/2019/01/OUP_jsb_ex_S14_1.mp3