BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
11291 / 18210 · Workshop 93 — Tempo Architecture and Rubato: Ritardando, Accelerando, Fermatas, Metric Modulation, Free Time, and Returning to Pulse Without Losing the Listener← prev⊞ allnext →

93.37Metric modulation is a bridge between clocks

It says:

“This small unit you were already hearing will become the foundation of the next section.”

This makes radical tempo changes feel inevitable.