69.53Level 23 — C6 / diminished alternation concept

C6 notes:

C-E-G-A.

Related diminished structure can supply passing movement between inversions.

This family relationship is central to traditional block-chord language.

We do not need to turn it into a giant theorem today.

First hear:

stable C6 sonority

→ diminished passing color

→ another C6 inversion.