E♭ Dominant 7th Chord (Eb7, D#7) on Piano
The Eb7 chord (Eb dominant 7th) is built from 4 notes: Eb – G – Bb – Db. It is also written as D#7.
Play these notes on a MIDI keyboard, your computer keyboard, or the on-screen keys and ChordKeys will name the chord back to you.
Notes and intervals
| Note | Degree | Interval from Eb | Semitones |
|---|---|---|---|
| Eb | 1 | root | 0 |
| G | 3 | major 3rd | 4 |
| Bb | 5 | perfect 5th | 7 |
| Db | b7 | minor 7th | 10 |
Inversions
Rearranging which note sits at the bottom gives you 4 playable voicings of the same chord. Inversions let you move between chords with less hand movement.
| Voicing | Notes | Bass note |
|---|---|---|
| Root position | Eb – G – Bb – Db | Eb in the bass |
| 1st inversion | G – Bb – Db – Eb | G in the bass |
| 2nd inversion | Bb – Db – Eb – G | Bb in the bass |
| 3rd inversion | Db – Eb – G – Bb | Db in the bass |
How the dominant 7th chord is built
Every dominant 7th chord uses the same interval formula: 1 (0 semitones), 3 (4 semitones), 5 (7 semitones), b7 (10 semitones). Starting on Eb and applying that formula produces Eb, G, Bb, Db. Learn the formula once and you can build a dominant 7th chord on any of the twelve roots.
Keys that contain Eb7
Every note of Eb7 belongs to these keys, so it will sit naturally in a progression written in any of them.
Other chords on Eb
Dominant 7th chords on other roots
Frequently asked questions
What notes are in a Eb7 chord?
A Eb7 chord contains the notes Eb, G, Bb, Db. Those are the 1, 3, 5, b7 degrees measured from the root note Eb.
How do you play Eb7 on piano?
Place your thumb on Eb, then add G and Bb and Db above it. With a right hand in root position the common fingering is 1–2–3–5.
Is Eb7 the same as D#7?
Yes. Eb7 and D#7 are enharmonic equivalents — they sound identical and use the same piano keys. Which spelling you use depends on the key you are playing in.