5699 / 18210 · Workshop 40 — “The Sidewinder”: Hard Bop Groove, Dominant-Blues Harmony, Riff Layering, and How to Make a Vamp Feel Like a Full Arrangement← prev⊞ allnext →
40.30Level 13 — IV chord
After long C7:
move to:
F7.
That is IV7 in C blues.
The change is structurally significant because the vamp was static.