27.13Level 2 — Phrygian minor vamp

Hold C bass.

Alternate upper structures that emphasize:

C minor

and D♭ major-ish color.

For example:

Cm:

C E♭ G.

D♭ major:

D♭ F A♭.

Against a persistent C bass, D♭ creates:

♭9/♭2-like tension.

This is a strong modal sound.