16.42Level 19 — voice-leading before chord names

Take inner line:

A → A♭ → G

Now build:

F

Fm

C/G.

Take:

G → G♯ → A

build:

C/E

E7

Am.

Take:

C → C♯ → D

build:

Am/C

A7/C♯

Dm.

You now have three reusable chromatic formulas.