Ebdim7

Eb Diminished 7th

Octaves

Musical context

How the chord relates to the scale, mode, key and progression.

Theory

General info

Full name
Eb Diminished 7th
Symbol
Ebdim7
Root
Eb
Quality
Diminished 7th

Chord notes

1Ebroot
b3Gbminor 3rd
b5Adim 5th
bb7Cdim 7th

Functions & resolutions

Stability / tension
Maximum tension — extremely unstable
Most common resolutions
Unstable degrees
2F
b3Gb
resolves down to the 2nd
4Ab
b5A
resolves inward to the 4th
b6B
bb7C
resolves down to the tonic 5th
Main resolution
Ebdim7source
EE Major
Diminished Ebdim acts as a leading-tone chord — resolves up a half step to E. All tones are unstable, moving by semitones inward and outward to stable degrees.
Other resolutions
Ebdim7source
Deceptive resolution
GG Major
Due to its symmetry, a diminished 7th chord can resolve to any major or minor chord a minor 3rd apart.
Ebdim7source
Modal resolution
FmF Minor
In modal context, a diminished chord can be used as a passing chord, connecting two diatonic chords through chromatic bass motion.
Ebdim7source
Jazz reharmonization
D7D Dominant 7
In jazz, dim7 is often reinterpreted as a rootless dominant 7b9. For example, Ebdim7 ≈ D7b9, opening additional resolution paths.
Ebdim7source
Functional resolution
BbmBb Minor
A diminished chord can function as a leading-tone chord to any degree — not just the tonic. Often used before the ii, iii, or vi degrees.

Features

Character
Fully diminished, symmetric and unstable
Characteristic interval
Diminished 7th (°7)
Description
Four tones are stacked in minor 3rds; the diminished 5th and 7th create two tritones. Symmetry allows any tone to be enharmonically reinterpreted as the root.
Application
  • Leading-tone seventh in minor
  • Secondary leading-tone chords
  • Chromatic voice leading

Voicing & structure

Root position

v1Eb(Eb4)Bass
root
v2Gb(Gb4)m3from Eb
v3A(A4)m3from Gb
v4C(C5)m3from A

Harmony

Compatible scales

All chord tones are contained in these scales — use them for improvisation.

This chord on guitar 🎸

See how Ebdim7 looks on guitar.

Explore

Circle of fifths

Highlighted major keys contain this chord among their diatonic harmonies.

CAmGEmDBmAF#mEC#mBG#mF#D#mDbBbmAbFmEbCmBbGmFDmEbmajor
Relative key
Dominant
Subdominant
Key signature
3 flats (Bb, Eb, Ab)

Practice

Keyboard Trainer

Reinforce it in practice — play and name notes on the interactive keyboard.

Open Trainer

Test yourself

(Press any key to start)

Frequently Asked Questions