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E♭ Dominant 7th Sharp 11

Also known as D♯ Dominant 7th Sharp 11
Same keys, different spelling.
Open D♯ Dominant 7th Sharp 11Same chord, spelled with sharpsWhat are enharmonics? →Why one chord has two names
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E♭7♯11
E♭ – G – A – B♭ – D♭
Formula:R-M3-A4-P5-m7
Intervals:P1-M3-A4-P5-m7
Scale Degrees:1-3-#4-5-b7

Introduction

Eb Dominant 7th Sharp 11 piano chord, root position — Eb, G, Bb, Db, A
The Eb Dominant 7th Sharp 11 chord in root position on a piano keyboard, notes Eb, G, Bb, Db, A.

The E♭ Dominant 7th Sharp 11 chord is a five-note chord made up of E♭, G, A, B♭, and D♭. It is built from a root, major third, augmented fourth, perfect fifth, and minor seventh.

Notes

Notes:E♭ – G – A – B♭ – D♭

Key Signature

The key of Eb Dominant 7th Sharp 11 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.

BEADGCF

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
IE♭ Major (major)
DegreeNumeralChordQuality
1IE♭ MajorMajor
2iiF MinorMinor
3iiiG MinorMinor
4IVA♭ MajorMajor
5VB♭ MajorMajor
6viC MinorMinor
7vii°D DiminishedDiminished

Theory: Intervals

Formula: R-M3-A4-P5-m7
Intervals: P1-M3-A4-P5-m7

The E♭ Dominant 7th Sharp 11 is built by stacking intervals from the root note. The formula R-M3-A4-P5-m7 describes the scale degrees used. The intervals P1-M3-A4-P5-m7 show the distance between each note in the chord.

E♭ Dominant 7th Sharp 11 — Frequently Asked Questions

What notes are in the Eb Dominant 7th Sharp 11 chord?
Eb7#11 contains: Eb, G, A, Bb, Db. Lydian Dominant sound.
How does Eb7#11 differ from Eb7?
Adds A (the #11). Brighter and more complex.
How does Eb7#11 differ from Eb11?
Eb11 has Ab (natural 11th, clashes with G). Eb7#11 has A which doesn't clash.
How is Eb7#11 used in music?
Lydian Dominant. Jazz. Tritone sub for A7.
What scale matches Eb7#11?
Eb Lydian Dominant: Eb, F, G, A, Bb, C, Db — 4th mode of Bb melodic minor.
What songs use 7#11?
Modern jazz, fusion.

Practice Tips

  • Play Eb7 then add A — Lydian Dominant brightness.
  • The #11 doesn't clash with the third.
  • Eb7#11 as tritone sub for A7.
  • Lydian Dominant scale over this chord.
  • Common in jazz standards.
  • Practice Eb7#11 → Ab resolution.

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