9528 / 18210 · Workshop 78 — Upper-Structure Voice Leading in Motion: Keeping Rich Extensions Smooth Across Chords Instead of Treating Each Voicing as a Separate Shape← prev⊞ allnext →
78.62Level 39 — nearest-inversion upper triad
Suppose upper structure changes:
A♭m → C major.
Do not play both in root position.
Choose inversion requiring least movement.
This is critical.
Upper-structure theory does not imply root-position upper triads.