D#m7(b5) chord

D#m7b5 chord for piano with keyboard diagram.
Explanation: The D sharp minor seventh flat five is also called D sharp half-diminished (also written as D#ΓΈ). The chord is abbreviated D#m7b5, D#m7(b5) or D#m7-b5.
Theory: The D#m7b5 is a D sharp minor seventh with a lowered fifth.

D#m7b5

D#m7b5 chord diagram
Notes: D# - F# - A - C#
Left hand: 5-3-2-1
Right hand: 1-2-3-5

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D# chord categories

D# D#m D#7 D#m7 D#maj7 D#mM7 D#6 D#m6 D#6/9 D#5 D#9 D#m9 D#maj9 D#11 D#m11 D#maj11 D#13 D#m13 D#maj13 D#add D#7-5 D#7+5 D#sus D#dim D#dim7 D#m7b5 D#aug D#aug7