Chord · 7ths

Dm7♭5 — D Half-Diminished

Dm7♭5 is the D half-diminished chord. It is built on the root D with minor 3rd (F), diminished 5th (A♭) and minor 7th (C) above it — the formula 1 ♭3 ♭5 ♭7, sounding the notes D F A♭ C. On the piano it sits at D (octave 4) and above in the library's voicing; the same 4 notes in any octave are still Dm7♭5.

Root
D
Quality
Half-Diminished
Formula
1 ♭3 ♭5 ♭7
Notes
D F A♭ C

On the keyboard

Dm7♭5 on the piano keyboard: D F A♭ C1235DFA♭C

Right-hand fingering for this voicing: 1–2–3–5 (1 is the thumb).

The notes of Dm7♭5

DegreeNoteInterval from the rootPitch
1DrootD4
♭3Fminor 3rdF4
♭5A♭diminished 5thA♭4
♭7Cminor 7thC5

Other 7ths on D

Half-Diminished chords on every root

Part of the chord reference. See also the scales and the keys.