E♭dim7
Eb Diminished 7th — perfectly symmetrical stacked minor thirds — the ultimate passing chord, able to resolve almost anywhere.
The keys
E♭ – G♭ – A – C
What's inside E♭dim7
| Note | Interval from root | Degree |
|---|---|---|
| E♭ | Root | 1 |
| G♭ | Minor 3rd | b3 |
| A (spelled B♭♭) | Diminished 5th | b5 |
| C (spelled D♭♭) | Diminished 7th | bb7 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | E♭4 – G♭4 – A4 – C5 |
| 1st inversion | G♭4 – A4 – C5 – E♭5 |
| 2nd inversion | A4 – C5 – E♭5 – G♭5 |
| 3rd inversion | C5 – E♭5 – G♭5 – A5 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | E♭2 – C3 |
| Right (colour) | G♭4 – A4 |
Where E♭dim7 lives
As the ii chord
E♭dim7 → A♭7 → D♭maj7
Minor-family sevenths live on the ii — this is the move they were born for.
Stepwise colour
E♭ → E♭dim7 → Fm7
Used as a passing colour between neighbouring chords.
Put E♭dim7 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →