In J.S. Bach's Two-part Inventions both voices overlap and imitate each other creating counterpoint. The SUBJECT of no. 4 contains a d-minor Harmonic form scale whose 6th note, B flat does NOT continue in an upward motion to the leading tone, C# or 7th note, but instead, the C# is displaced down to the lower… Continue reading Piano Lesson: Analyzing/playing Bach Invention in D minor, No. 4, BWV 775 in slow tempo (Videos)