ChordKeysChord & scale reference

E♭ Suspended 4th Chord (Ebsus4, D#sus4) on Piano

The Ebsus4 chord (Eb suspended 4th) is built from 3 notes: Eb – Ab – Bb. It is also written as D#sus4.

EbAbBb

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

NoteDegreeInterval from EbSemitones
Eb1root0
Ab4perfect 4th5
Bb5perfect 5th7

Inversions

Rearranging which note sits at the bottom gives you 3 playable voicings of the same chord. Inversions let you move between chords with less hand movement.

VoicingNotesBass note
Root positionEb – Ab – BbEb in the bass
1st inversionAb – Bb – EbAb in the bass
2nd inversionBb – Eb – AbBb in the bass

How the suspended 4th chord is built

Every suspended 4th chord uses the same interval formula: 1 (0 semitones), 4 (5 semitones), 5 (7 semitones). Starting on Eb and applying that formula produces Eb, Ab, Bb. Learn the formula once and you can build a suspended 4th chord on any of the twelve roots.

Keys that contain Ebsus4

Every note of Ebsus4 belongs to these keys, so it will sit naturally in a progression written in any of them.

Other chords on Eb

Suspended 4th chords on other roots

Frequently asked questions

What notes are in a Ebsus4 chord?

A Ebsus4 chord contains the notes Eb, Ab, Bb. Those are the 1, 4, 5 degrees measured from the root note Eb.

How do you play Ebsus4 on piano?

Place your thumb on Eb, then add Ab and Bb above it. With a right hand in root position the common fingering is 1–3–5.

Is Ebsus4 the same as D#sus4?

Yes. Ebsus4 and D#sus4 are enharmonic equivalents — they sound identical and use the same piano keys. Which spelling you use depends on the key you are playing in.