22.82Arrangement plan

Intro

B♭6/9 → G7 → Cm9 → F13.

First melody

roots + shells.

Second phrase

slightly richer extensions.

Relative-minor moment

D7♭9→Gm clearly colored.

Later repeat

one diminished or tritone approach.

Solo

motif + destination targeting.

Final melody

reduce complexity.

Ending

E♭maj7 → E♭m6 → B♭6/9.