How to Play Piano Chord: A half-diminished 9 — 4th inv | PianoKitty

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Am9♭5

4th inversion

A half-diminished 9

4th inversion

Notes

B, A, C, D♯, G

Parent major scale: A

The notes of the A major scale are:

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

Similar chords

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

Upper structures

A diminished + Aaug (notes overlap)

Play it as two chords

C minor A · G

C–D♯–G = ♭3, ♭5, ♭7 · left hand: root + ♭7

Practice the half-diminished 9 chords Practice all inversions of Am9♭5

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