BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
11349 / 18210 · Workshop 93 — Tempo Architecture and Rubato: Ritardando, Accelerando, Fermatas, Metric Modulation, Free Time, and Returning to Pulse Without Losing the Listener← prev⊞ allnext →

93.95Level 59 — no neutral zone: metric modulation instead

If you want continuous energy:

use subdivision relationship.

If you want dramatic reset:

use free-time zone.

These are two different architectural solutions.