How to Play Piano Chord: D♯ half-diminished 7 flat 9 — root | PianoKitty

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D♯m7♭5♭9

root position

D♯ half-diminished 7 flat 9

root position

Notes

D♯, F♯, A, C♯, E

Parent major scale: D♯

The notes of the D♯ major scale are:

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

1, ♭3, ♭5, ♭7, ♭9

root	D♯
flat third	F♯
flat fifth	A
flat seventh	C♯
flat ninth	E

Similar chords

D♯ half-diminished 7 with a minor 3rd added on top (3 semitones)
D♯ minor 7 flat 9 with raised fifth

Upper structures

D♯ diminished + E♭ (notes overlap)

Play it as two chords

A major D♯ · C♯

A–C♯–E = ♭5, ♭7, ♭9 · left hand: root + ♭7
F♯ minor D♯ · C♯

F♯–A–C♯ = ♭3, ♭5, ♭7 · left hand: root + ♭7

Practice the half-diminished 7 flat 9 chords Practice all inversions of D♯m7♭5♭9

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