Chord Colors

G sharp augmented seven flat nine chord

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About the G sharp augmented seven flat nine chord

G sharp augmented seven flat nine sits outside the plain diatonic set, so it is borrowed to add color and tension. Think of it as a G augmented seventh flat nine chord.

Its notes are G, B, E, F, and A. The intervals are a major third, an augmented fifth, a minor seventh, and a minor ninth.

Also called A flat augmented seven flat nine, which spells the same notes enharmonically. In shorthand it is commonly written G#aug7b9.

Positions

No stored guitar shape for this voicing yet. Build it from G♯, B♯, E, F♯, A.

Notes and intervals

1G sharpRoot
2B sharpMajor 3rd
3EAugmented 5th
4F sharpMinor 7th
5AMinor 9th

Shapes

Chromatic

CC♯D♭DD♯E♭EFF♯G♭GG♯A♭AA♯B♭B

Circle of Fifths

CGDAEBF♯G♭C♯D♭G♯A♭D♯E♭A♯B♭F

Other G sharp chords

Simpler triads

Suspended

Sixths and sevenths

Extensions

Altered

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G♯aug7♭9 chord on guitar shown as colored note dots
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