D° (Diminished)

D · F · Ab · 3 notes

Chord

Formula: R – ♭3 – ♭5

D R

F ♭3

Ab ♭5

Bass note: D

Key	Degree
Eb Major	vii°
C Minor	ii°

The D° chord is a diminished chord built on D. It consists of the notes D, F, Ab (scale degrees R, ♭3, ♭5).

Diminished chords stack two minor 3rds (3+3 semitones), creating a tense, unresolved sound. They typically appear as the vii° in major keys.

Use the Key Finder to find what key these notes belong to, or the Progression Builder to use this chord in a sequence.