Chord · Altered Dom.

E♭7♭9♯11 — E♭ Altered ♭9♯11

E♭7♭9♯11 is the E♭ altered ♭9♯11 chord. It is built on the root E♭ with major 3rd (G), perfect 5th (B♭), minor 7th (D♭), minor 9th (F♭) and augmented 11th (A) above it — the formula 1 3 5 ♭7 ♭9 ♯11, sounding the notes E♭ G B♭ D♭ F♭ A. On the piano it sits at Eb (octave 4) and above in the library's voicing; the same 6 notes in any octave are still E♭7♭9♯11.

Root
E♭
Quality
Altered ♭9♯11
Formula
1 3 5 ♭7 ♭9 ♯11
Notes
E♭ G B♭ D♭ F♭ A

On the keyboard

E♭7♭9♯11 on the piano keyboard: E♭ G B♭ D♭ F♭ AE♭GB♭D♭F♭A

The notes of E♭7♭9♯11

DegreeNoteInterval from the rootPitch
1E♭rootE♭4
3Gmajor 3rdG4
5B♭perfect 5thB♭4
♭7D♭minor 7thD♭5
♭9F♭minor 9thF♭5
♯11Aaugmented 11thA5

Other altered dom. on E♭

Altered ♭9♯11 chords on every root

Part of the chord reference. See also the scales and the keys.