E♭ 9sus4
Also known as D♯ 9sus4
Same keys, different spelling.
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Listen plays the chord. Play Along lights up each note in order so you can follow.
E♭9sus4
E♭ – A♭ – B♭ – D♭ – F
Formula:R-P4-P5-m7-M9
Intervals:P1-P4-P5-m7-M9
Scale Degrees:1-4-5-b7-9
Introduction
The E♭ 9sus4 chord is a five-note chord made up of E♭, A♭, B♭, D♭, and F. It is built from a root, perfect fourth, perfect fifth, minor seventh, and major ninth.
Notes
Key Signature
The key of Eb 9sus4 has 3 flats.
B♭E♭A♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of E♭ Major
These are the diatonic triads built on each degree of the E♭ major scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
I — E♭ Major (major)
Theory: Intervals
Formula: R-P4-P5-m7-M9
Intervals: P1-P4-P5-m7-M9
The E♭ 9sus4 is built by stacking intervals from the root note. The formula R-P4-P5-m7-M9 describes the scale degrees used. The intervals P1-P4-P5-m7-M9 show the distance between each note in the chord.
E♭ 9sus4 — Frequently Asked Questions
What notes are in the Eb 9sus4 chord?
The Eb 9sus4 chord (Eb9sus4) contains 5 notes: Eb, Ab, Bb, Db, F. Formula: R-P4-P5-m7-M9.
How is Eb9sus4 used in music?
Eb9sus4 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Eb9sus4?
Eb9sus4 uses scale degrees 1-4-5-b7-9, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on Eb and spacing remaining fingers across the chord.
- Practice Eb9sus4 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing Eb9sus4 in different octaves to find the most comfortable position.
- Resolve Eb9sus4 to a nearby chord to hear its function in context.
Related Tools
Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.