G♯7♭13♯9 / A♭7♭13♯9

6-note dominant flat 13 sharp 9 on G♯ / A♭G♯, B, C, D♯, E, F♯.

Press to hear the chord strummed low to high.

A dominant seventh with a sharp ninth and a flat thirteenth — two of the altered tensions at once, jagged and blues-tinged.

The notes

Pitches taken from the first fingering below — click any note to open its frequency page.

Interval formula

DegreeNoteWhat it is
1G♯root
♯9Bsharp ninth
3Cmajor third
5D♯perfect fifth
♭13Eflat thirteenth
♭7F♯flat seventh (dominant)

The formula reads in semitones above the root (G♯): 1, ♯9, 3, 5, ♭13, ♭7. A voicing may leave a tone out — often the fifth — but never adds one from outside this set.

Ukulele fingerings · 4

2fr4311
from fret 2
3412
open position
5fr1234
from fret 5
8fr2413
from fret 8

Read a diagram top-down: the thick bar is the nut, dots are where to press (the number is which finger), means play the open string, means don't play it. A bar across strings is a barre.

Other G♯ / A♭ chords

7♭13♯9 chords on every root