G♭ 9♯11

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

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

G♭ 9♯11 chord: G♭, B♭, D♭, F♭, A♭, C

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

A dominant 9th with a raised 11th: Lydian dominant, the sound of jazz fusion and modal post-bop.

F♯ 9♯11

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

Open F♯ 9♯11 What are enharmonics?

Construction

G♭ 9♯11 = Root + Major 3rd + Perfect 5th + Minor 7th + Major 2nd + Diminished 5th = G♭, B♭, D♭, F♭, A♭, C

Note	Interval	Degree
G♭	Root	1
B♭	Major 3rd	3
D♭	Perfect 5th	5
F♭	Minor 7th	♭7
A♭	Major 2nd	9
C	Diminished 5th	♭5

G♭ 9♯11 : Frequently Asked Questions

What is the G♭ 9♯11 chord on piano?

The G♭ 9♯11 chord contains the notes G♭ – B♭ – D♭ – F♭ – A♭ – C. On piano, play these notes together to sound the chord.

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