Chord · 7ths

E♭dim7 — E♭ Diminished 7th

E♭dim7 is the E♭ diminished 7th chord. It is built on the root E♭ with minor 3rd (G♭), diminished 5th (B𝄫) and diminished 7th (D𝄫) above it — the formula 1 ♭3 ♭5 𝄫7, sounding the notes E♭ G♭ B𝄫 D𝄫. On the piano it sits at Eb (octave 4) and above in the library's voicing; the same 4 notes in any octave are still E♭dim7.

Root
E♭
Quality
Diminished 7th
Formula
1 ♭3 ♭5 𝄫7
Notes
E♭ G♭ B𝄫 D𝄫

On the keyboard

E♭dim7 on the piano keyboard: E♭ G♭ B𝄫 D𝄫1235E♭G♭B𝄫D𝄫

Right-hand fingering for this voicing: 1–2–3–5 (1 is the thumb).

The notes of E♭dim7

DegreeNoteInterval from the rootPitch
1E♭rootE♭4
♭3G♭minor 3rdG♭4
♭5B𝄫diminished 5thB♭♭4
𝄫7D𝄫diminished 7thD♭♭5

Other 7ths on E♭

E♭7E♭maj7E♭m7E♭m7♭5E♭mMaj7E♭7sus2E♭7sus4E♭7♭5E♭7♯5E♭maj7♭5E♭maj7♯5

Diminished 7th chords on every root

Cdim7C♯dim7Ddim7Edim7Fdim7F♯dim7Gdim7G♯dim7Adim7B♭dim7Bdim7

Part of the chord reference. See also the scales and the keys.