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D♭ Half Diminished

Notes: D♭ – F♭ – A♭♭ – C♭
Degrees: 1 – ♭3 – ♭5 – ♭7
Also written: D♭m7♭5, D♭ø7, D♭øRaise F♭ to F and it is D♭7♭5; raise A♭♭ to A♭ and it is D♭m7. D♭ and C♭ do not move.
C♯ Half Diminished
This is the same chord as C♯ Half Diminished: the same keys on the keyboard, spelled with sharps.

Construction

D♭ Half Diminished = Root + Minor 3rd + Diminished 5th + Minor 7th = D♭, F♭, A♭♭, C♭
NoteIntervalDegree
D♭Root1
F♭Minor 3rd♭3
A♭♭Diminished 5th♭5
C♭Minor 7th♭7

How to Play the D♭ Half Diminished

Right Hand (RH)

Place your right hand over the keys with the thumb on the root. Use the fingering: 2 – 3 – 4 – 5

Left Hand (LH)

For the left hand, start with your pinky on the root. Use the fingering: 5 – 4 – 3 – 2

D♭ Half Diminished Inversions

  • Root position
    D♭ – F♭ – A♭♭ – C♭
  • 1st inversion (D♭m7♭5/F♭)
    F♭ – A♭♭ – C♭ – D♭
  • 2nd inversion (D♭m7♭5/A♭♭)
    A♭♭ – C♭ – D♭ – F♭
  • 3rd inversion (D♭m7♭5/C♭)
    C♭ – D♭ – F♭ – A♭♭

Same Notes, Other Names

The notes D♭ – F♭ – A♭♭ – C♭ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:

D♭ Half Diminished : Frequently Asked Questions

What is the D♭ Half Diminished chord on piano?
The D♭ Half Diminished chord contains the notes D♭ – F♭ – A♭♭ – C♭. On piano, play these notes together to sound the chord.
What notes are in the Db Half Diminished chord?
Dbm7b5 contains: Db, Fb, Abb, Cb. Diminished triad with minor seventh. Enharmonic of C#m7b5.
How does Dbm7b5 differ from Dbdim7?
Dbm7b5 has Cb (minor seventh). Dbdim7 has Bbb (diminished seventh).
How is Dbm7b5 used?
ii chord in Cb minor. C#m7b5 more commonly written.
What songs use Half Diminished?
Jazz minor-key harmony. Autumn Leaves pattern.
How does Dbm7b5 differ from Dbm7?
Flatted fifth (Abb vs Ab).
Is Dbm7b5 the same as Fbm6?
Same notes, different root.

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