12.12A beautiful chain

Now combine them:

C → E7 → Am → A7 → Dm → G7 → C

This is one of the progressions I want firmly under your fingers.

Analyze it:

C = I

E7 = V7/vi

Am = vi

A7 = V7/ii

Dm = ii

G7 = V7

C = I

So:

I → V7/vi → vi → V7/ii → ii → V7 → I

It sounds far richer than:

C → Am → Dm → G7 → C

but the underlying destination path is similar.