10538 / 18210 · Workshop 87 — Harmonic Rhythm as Narrative: Accelerating, Decelerating, Delaying, and Reframing Chord Changes to Shape Form← prev⊞ allnext →
87.23Level 13 — use harmonic acceleration before modulation
Suppose C → D♭.
Bars 1–4: slow C harmony.
Bars 5–6: secondary dominants/passings increase.
Bar 7: rapid chromatic approach.
Bar 8: A♭7.
Then D♭.
The increasing event rate prepares the new key.