BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
382 / 18210 · Module 10 — Seventh Chords: The Language of Jazz, Pop, and Richer Harmony← prev⊞ allnext →

10.32One diminished seventh chord has four possible names

Because every note is equally spaced:

B-D-F-A♭

B-D-F-A♭

can also be viewed enharmonically as diminished chords rooted on:

B

D

F

A♭

depending on context.

This is why diminished seventh chords are such powerful modulation tools.

We’ll explore this more later.