How to Play Piano Chord: G♯ half-diminished 9 — 3rd inv | PianoKitty

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G♯m9♭5

3rd inversion

G♯ half-diminished 9

3rd inversion

Notes

F♯, A♯, G♯, B, D

Parent major scale: G♯

The notes of the G♯ major scale are:

#	Note	Function
1	G♯	root
2	A♯	second
3	C	third
4	C♯	fourth
5	D♯	fifth
6	F	sixth
7	G	seventh
8	G♯	octave
9	A♯	ninth

Major scale pattern

The semitone pattern for a major scale is:

WWHWWWH

where:

W = Whole step (2 semitones)
H = Half step (1 semitone)

half-diminished 9 chord pattern

1, ♭3, ♭5, ♭7, 9

root	G♯
flat third	B
flat fifth	D
flat seventh	F♯
ninth	A♯

Similar chords

G♯ half-diminished 7 with a major 3rd added on top (4 semitones)
A♭ dominant 9 flat 5 with raised third
G♯ minor 9 with raised fifth

Upper structures

G♯ diminished + A♭aug (notes overlap)

Play it as two chords

B minor G♯ · F♯

B–D–F♯ = ♭3, ♭5, ♭7 · left hand: root + ♭7

Practice the half-diminished 9 chords Practice all inversions of G♯m9♭5

The keyboard can of every chord — change it any time in Preferences.