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A♭ 7♯9♯11

Notes: A♭ – C – E♭ – G♭ – B – D
Degrees: 1 – 3 – 5 – ♭7 – ♯9 – ♯11Also written: A♭7♯9♯11Lower B to B♭ and it is A♭9♯11. A♭, C, D, E♭ and G♭ do not move.

The A♭ 7♯9♯11 chord is a six-note chord made up of A♭, C, E♭, G♭, B, and D.

A♭ 7♯9♯11 chord: A♭, C, E♭, G♭, B, D

It is built from a root, major third, perfect fifth, minor seventh, augmented ninth, and augmented eleventh.

A dominant 7th with raised 9th AND raised 11th: maximally tense, the late-Coltrane altered sound.

G♯ 7♯9♯11
This is the same chord as G♯ 7♯9♯11: the same keys on the keyboard, spelled with sharps.

Construction

A♭ 7♯9♯11 = Root + Major 3rd + Perfect 5th + Minor 7th + Minor 3rd + Diminished 5th = A♭, C, E♭, G♭, B, D
NoteIntervalDegree
A♭Root1
CMajor 3rd3
E♭Perfect 5th5
G♭Minor 7th♭7
BMinor 3rd♭3
DDiminished 5th♭5

A♭ 7♯9♯11 : Frequently Asked Questions

What is the A♭ 7♯9♯11 chord on piano?
The A♭ 7♯9♯11 chord contains the notes A♭ – C – E♭ – G♭ – B – D. On piano, play these notes together to sound the chord.
What notes are in the Ab 7♯9♯11 chord?
The Ab 7♯9♯11 chord (Ab7♯9♯11) contains 6 notes: Ab, C, Eb, Gb, B, D. Formula: R-M3-P5-m7-A9-A11.
How is Ab7♯9♯11 used in music?
Ab7♯9♯11 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 Ab7♯9♯11?
Ab7♯9♯11 uses scale degrees 1-3-5-b7-#9-#11, giving it its distinctive sound.

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