A♭7♯9 chord on guitar

A♭7♯9 is the A♭ dominant 7 sharp 9 chord. Its notes are A♭, C, E♭, G♭ and B. It is the same chord as G♯7♯9. A familiar blues-rock altered dominant. The fifth is omitted.

How to play A♭7♯9

Root on A string

no fifth
×EADGB×e10

x-11-10-11-12-x

Numbers show frets from the low E string to the high e string; x means don't play that string.

What's in A♭7♯9

Formula
1 · 3 · 5 · ♭7 · ♯9
Also written
A♭7♯9
Chord type
Dominant 7 sharp 9

A♭7♯9 notes across the neck

open123456789101112G♭A♭BCE♭BCE♭G♭A♭E♭G♭A♭BCA♭BCE♭G♭BCE♭G♭A♭BG♭A♭BCE♭

Every A♭, C, E♭, G♭ and B on the first 12 frets. The filled dots are the root, A♭. Build your own shape from any nearby group.

Related chords

Other A♭ chords

Other dominant 7 sharp 9 chords

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