Chord · Altered Dom.

D7♯5♭9/11 — D Altered ♯5♭9 / 11th

D7♯5♭9/11 is the D altered ♯5♭9 / 11th chord. It is built on the root D with major 3rd (F♯), augmented 5th (A♯), minor 7th (C), minor 9th (E♭) and perfect 11th (G) above it — the formula 1 3 ♯5 ♭7 ♭9 11, sounding the notes D F♯ A♯ C E♭ G. On the piano it sits at D (octave 4) and above in the library's voicing; the same 6 notes in any octave are still D7♯5♭9/11.

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

On the keyboard

D7♯5♭9/11 on the piano keyboard: D F♯ A♯ C E♭ GDF♯A♯CE♭G

The notes of D7♯5♭9/11

DegreeNoteInterval from the rootPitch
1DrootD4
3F♯major 3rdF♯4
♯5A♯augmented 5thA♯4
♭7Cminor 7thC5
♭9E♭minor 9thE♭5
11Gperfect 11thG5

Other altered dom. on D

Altered ♯5♭9 / 11th chords on every root

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