D#m9b5 Piano Chord: Notes, Inversions and Fingering (D Sharp Half-Diminished Ninth)

How to play D#m9b5

Find D# at or above middle C. That is the root.
Add F#, A, C# and F above it, skipping the keys in between.
Right hand fingering: 1-2-3-4-5, or split the chord between both hands. Left hand: play the root and fifth, and leave the upper notes to the right hand.

Notes

D#root

F#b3 · minor third

Ab5 · diminished fifth

C#b7 · minor seventh

F9 · ninth

Notes and theory

D#root

F#b3 · minor third

Ab5 · diminished fifth

C#b7 · minor seventh

F9 · ninth

The m9b5 adds a ninth to a half-diminished chord, used in minor-key jazz. The formula is 1 b3 b5 b7 9. Strictly by music theory the notes are spelled D#, F#, A, C# and E#; E# is the same key as F.

D#m9b5 on ukulele

More D# chords

All D# piano chords

D#major D#mminor D#7dominant seventh D#m7minor seventh D#maj7major seventh D#sus4suspended fourth D#sus2suspended second D#dimdiminished D#augaugmented D#6major sixth D#9dominant ninth D#add9added ninth D#m7b5half-diminished D#dim7diminished seventh D#7sus4dominant seventh suspended fourth D#5power chord D#m6minor sixth D#m9minor ninth

half-diminished ninth chords in every key

Cm9b5 C#m9b5 Dm9b5 D#m9b5 Em9b5 Fm9b5 F#m9b5 Gm9b5 G#m9b5 Am9b5 A#m9b5 Bm9b5

Questions

What notes are in the D#m9b5 chord?

D#m9b5 (D sharp half-diminished ninth) is made of five notes: D# (root), F# (minor third), A (diminished fifth), C# (minor seventh) and F (ninth).

How do you play D#m9b5 on piano?

Play D#, F#, A, C# and F together. With the right hand use fingers 1-2-3-4-5, or split the chord between both hands; with the left hand use play the root and fifth, and leave the upper notes to the right hand.

What does a half-diminished ninth chord sound like?

The m9b5 adds a ninth to a half-diminished chord, used in minor-key jazz.