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D half-diminished chord

The Dm7♭5 chord (half-diminished) is made of the notes D, F, A♭, C. Its formula compared with the major scale is 1 ♭3 ♭5 ♭7.

Dm7♭5

Sevenths · 4 notes

Note names

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How it is built

DegreeNoteInterval from the root
1DUnison
♭3FMinor third
♭5A♭Diminished fifth
♭7CMinor seventh

Inversions

  • Dm7♭5D F A♭ CRoot position
  • Dm7♭5/FF A♭ C DFirst inversion
  • Dm7♭5/A♭A♭ C D FSecond inversion
  • Dm7♭5/CC D F A♭Third inversion

Which keys it belongs to

Dm7♭5 is a diatonic chord, that is, it comes from a degree of the scale, in these keys:

Frequently asked questions

Which notes make up the Dm7♭5 chord?
The notes are D, F, A♭, C.
What is the formula of the Dm7♭5 chord?
The formula is 1 ♭3 ♭5 ♭7: minor third, diminished fifth, minor seventh.

Texts and tools by , professional musician and developer. Last updated: October 8, 2026.

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