The D#m7b5 chord (D sharp minor 7 flat 5, or D sharp half diminished) contains the notes D#, F#, A and C#, which is the 1 (root) b3, b5 and b7 of the D# Major scale. It can be viewed as a D#m7 chord with a flat 5 or a D# diminished chord with an added b7.

The half diminished chord can sound like a very dissonant chord, when played in isolation. However, when played in the context of other chords, it can sound beautiful. D#m7b5 is the 7th chord in the key of E Major. Try playing an E chord, then a D#m7b5 chord and then return to E. This is an example of how D#m7b5 can sound beautiful in context.

The D#m7b5 chord is most commonly played with the root note on the 6th fret of the 5th string (2nd shape down, in the picture below).

10 Ways To Play The D#m7b5 Chord

If you’ve come to this page just to view some chord diagrams for D#m7b5 (D sharp half diminished), here they are.

D#m7b5 Chord 10 Shapes

Some Quick D#m7b5 Chord Theory

  • The D sharp minor 7 flat 5 chord contains the notes D#, F#, A and C#.
  • The D#m7b5 chord is produced by playing the 1st (root), flat 3rd, flat 5th and flat 7th of the D# Major scale.
  • The D sharp minor 7 flat 5 chord (just like all half diminished chords) contains the following intervals (from the root note): minor 3rd, minor 3rd, Major 3rd, Major 2nd (back to the root note).
  • D#m7b5 is a D# diminished chord, with an added flat 7th (C#) included, or a D#m7 chord with the 5th lowered by a semitone.
  • D#m7b5 is the 7th chord in the key of E.
  • The D# locrian mode can be used when soloing over the D#m7b5 chord.

Further Reading