10203 / 18210 · Workshop 84 — Modulation Architecture: Pivot Chords, Direct Modulation, Common-Tone Modulation, Sequential Modulation, and Making Key Changes Feel Inevitable← prev⊞ allnext →
84.62Level 37 — backdoor modulation
Old tonic area.
Borrowed/backdoor sequence:
Fm7-B♭7.
Instead of resolving C:
continue into E♭ major territory, where B♭7 has ordinary dominant function.
This is elegant.