10241 / 18210 · Workshop 84 — Modulation Architecture: Pivot Chords, Direct Modulation, Common-Tone Modulation, Sequential Modulation, and Making Key Changes Feel Inevitable← prev⊞ allnext →
84.100Challenge 6 — modulation by layer replacement
Old key below.
New key introduced as upper structure/polychord.
Gradually transfer bass.
No hard boundary.