G♯m9♭5 / A♭m9♭5

5-note minor 9th flat 5 on G♯ / A♭G♯, A♯, B, D, F♯.

Press to hear the chord strummed low to high.

A half-diminished seventh with the ninth added — the ninth softens the tension of the flat five just slightly.

The notes

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

Interval formula

DegreeNoteWhat it is
1G♯root
9A♯ninth
♭3Bminor third
♭5Dflat fifth (diminished)
♭7F♯flat seventh (dominant)

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

Ukulele fingerings · 4

4221
open position
2
open position
4fr1342
from fret 4
7fr1413
from fret 7

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

m9♭5 chords on every root