b51b3b7
Fig. 1 · D#m7b5 on the keyboard

piano chord

D♯m7♭5

D♯1F♯♭3A♭5C♯♭7

A diminished triad with a minor seventh rather than a diminished one — half diminished, and not the same chord as dim7.

Written the other way round it is E♭m7♭5 — the same twelve keys on a piano, a different piece of notation.

on guitaron ukulelethe scale

What is true of it

D♯m7♭5 is D♯, F♯, A and C♯ — 1, b3, b5 and b7 counted from D♯.

These are also the notes of F♯m6/D♯ and G♭m6/D♯. Which name is right depends on what is underneath and what came before — the notes alone do not decide.

D♯ in other shapes

D♯7dominant seventhD♯maj7major seventhD♯m7minor seventhD♯majorD♯mminorD♯dimdiminished

Cm7♭5C♯m7♭5D♭m7♭5Dm7♭5Em7♭5Fm7♭5F♯m7♭5G♭m7♭5all 374