Eb Diminished 7th
Ebdim7
Notes
Eb · Gb · Bbb · Dbb
Intervals
- RootEb (1P)
- Minor 3rdGb (3m)
- Diminished 5thBbb (5d)
- Diminished 7thDbb (7d)
Fretboard
On the fretboard, Bb represents Bbb, and Db represents Dbb.
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About
The E♭ fully diminished 7 (E♭–G♭–B♭♭–D♭♭) stacks four minor thirds, giving it a fully symmetrical structure. Each note can be respelled as a root — E♭°7 is enharmonically the same chord as G♭°7, B♭♭°7, and D♭♭°7 — meaning a single shape on the guitar can function as four different leading-tone chords depending on context. This flexibility makes dim7 especially useful as a passing or substitution chord, often resolving up a half step (here to F♭). All four tones carry the chord’s identity; the chord is defined by its symmetry, so removing any note weakens that quality. On guitar, one shape repeats identically every three frets. Compared to E♭m7♭5, dim7 is more unstable and dramatically tense.
Similar chords
Chords sharing two or more notes with this one, ranked by overlap.
Scales containing this chord
- E♭ Blues (deg 1)
- E♭ Minor Pentatonic (deg 1)
- E♭ Natural Minor (I)
- A♭ Natural Minor (V)
- B Major (III)
- B♭ Diminished (deg 4)
- B♭ Harmonic Minor (IV)
- B♭ Natural Minor (IV)
- D♭ Diminished (deg 2)
- D♭ Harmonic Minor (II)
- D♭ Major (II)
- D♭ Melodic Minor (II)
- D♭ Natural Minor (II)
- E Diminished (deg 8)
- F♯ Major (VI)
- F♯ Major Pentatonic (deg 5)
- G Diminished (deg 6)
- E♭ Dorian (I)
- E♭ Locrian (I)
- E♭ Phrygian (I)
- A♭ Dorian (V)
- A♭ Locrian (V)
- A♭ Mixolydian (V)
- A♭ Phrygian (V)
- B Lydian (III)
- B♭ Locrian (IV)
- B♭ Phrygian (IV)
- C Locrian (III)
- D♭ Dorian (II)
- D♭ Locrian (II)
- D♭ Mixolydian (II)
- D♭ Phrygian (II)
- E Lydian (VII)
- F Locrian (VII)
- F Phrygian (VII)
- F♯ Lydian (VI)
- F♯ Mixolydian (VI)
Scales whose notes include every chord tone. Roman numeral marks the chord root’s position in the scale; dashed badges aren’t linked yet.