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Fm7♭5 chord

F Half-Diminished 7th

The Tristan Chord — Wagner, 'Tristan und Isolde' (1865)

Fm7b5 · Root

1F4b3Ab4b5Cb5b7Eb5
C41b5C5C6b3b7

Every chord tone stacked from the root up.

Click keys to experiment with the chord

Notes

F – A♭ – C♭ – E♭

Formula

1 – b3 – b5 – b7

Practice Note

The half-diminished chord is the usual iiø7 in a minor-key ii–V–i, commonly paired with Locrian or Locrian natural 2. Its b5 and b7 lead into the dominant; the root may be omitted in a piano voicing when supplied by bass.

Try next

Fm7 · SiblingFdim7 · SiblingBb7b9 · Next in ii–VEbm · ii–V–i targetAbm6 · Same notesDb9 · Same notes (rootless)

About Fm7b5

The Fm7b5 chord sounds dark and ambiguous, the classic jazz ii chord in minor keys. Its notes are F, Ab, Cb, Eb. This chord is commonly heard in jazz. The Tristan Chord — Wagner, 'Tristan und Isolde' (1865).

Jazz
All F chords (61)

Triads

F — MajorFm — MinorFdim — DiminishedFaug — AugmentedFsus2 — Suspended 2ndFsus4 — Suspended 4thF5 — Power Chord

7ths

F7 — Dominant 7thFmaj7 — Major 7thFm7 — Minor 7thFm7#5 — Minor 7th Sharp 5Fdim7 — Diminished 7thF6 — Major 6thFm6 — Minor 6thF7sus4 — Dominant 7th Sus4F7sus2 — Dominant 7th Sus2

Extended

F9 — Dominant 9thFmaj9 — Major 9thFm9 — Minor 9thFadd9 — Add 9Fadd11 — Add 11Fadd2 — Add 2Fadd#11 — Add Sharp 11F11 — Dominant 11thF13 — Dominant 13thF6/9 — 6/9Fmaj13 — Major 13thFm(add2) — Minor Add 2Fm(add9) — Minor Add 9Fm(add11) — Minor Add 11FmMaj7 — Minor Major 7thFm11 — Minor 11thFm13 — Minor 13thFm6/9 — Minor 6/9F7#11 — Dominant 7th Sharp 11F9#11 — Dominant 9th Sharp 11F13#11 — Dominant 13th Sharp 11F9sus4 — Dominant 9th Sus4F13sus4 — Dominant 13th Sus4Fmaj7#11 — Major 7th Sharp 11Fmaj9#11 — Major 9th Sharp 11FmMaj9 — Minor Major 9thFm9b5 — Half-Diminished 9th

Altered

F7#9 — Dominant 7th Sharp 9F7b9#9 — Dominant 7th Flat 9 Sharp 9F13#9 — Dominant 13th Sharp 9F7b9 — Dominant 7th Flat 9F7#5 — Dominant 7th Sharp 5F7b5 — Dominant 7th Flat 5F7alt — Altered DominantF7#9#5 — Dominant 7th #9 #5F7b9b5 — Dominant 7th b9 b5F7#9b5 — Dominant 7th #9 b5F7sus4b9 — Dominant 7th Sus4 Flat 9F9#5 — Dominant 9th Sharp 5F9b5 — Dominant 9th Flat 5F13b9 — Dominant 13th Flat 9F7b13 — Dominant 7th Flat 13Faug7 — Augmented 7thFdim(maj7) — Diminished Major 7thFaugMaj7 — Augmented Major 7th