The E♭ Augmented 7th chord is a four-note chord made up of E♭, G, B, and D♭. It is built from a root, major third, augmented fifth, and minor seventh.
Construction
| Note | Interval | Degree |
|---|---|---|
| E♭ | Root | 1 |
| G | Major 3rd | 3 |
| B | Minor 6th | ♯5 |
| D♭ | Minor 7th | ♭7 |
E♭ Augmented 7th Inversions



| Position | Notes |
|---|---|
| Root Position | E♭ – G – B – D♭ |
| 1st Inversion | G – B – D♭ – E♭ |
| 2nd Inversion | B – D♭ – E♭ – G |
| 3rd Inversion | D♭ – E♭ – G – B |
Key Signature
A Augmented 7th chord is built from symmetrical or ambiguous intervals, so it doesn’t belong to a single key and has no key signature of its own.
Same Notes, Other Names
The notes E♭ – G – B – D♭ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell: