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F♯m7♭5 chord

F♯ Half-Diminished 7th

F#m7b5 · Root

1F#3b3A3b5C4b7E4
C3b3b5C4b7C51

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

F#m7 · SiblingF#dim7 · SiblingB7b9 · Next in ii–VEm · ii–V–i targetAm6 · Same notesD9 · Same notes (rootless)

About F#m7b5

The F#m7b5 chord sounds dark and ambiguous, the classic jazz ii chord in minor keys. Its notes are F#, A, C, E. This chord is commonly heard in jazz.

Jazz
All F# chords (61)

Triads

F# — MajorF#m — MinorF#dim — DiminishedF#aug — AugmentedF#sus2 — Suspended 2ndF#sus4 — Suspended 4thF#5 — Power Chord

7ths

F#7 — Dominant 7thF#maj7 — Major 7thF#m7 — Minor 7thF#m7#5 — Minor 7th Sharp 5F#dim7 — Diminished 7thF#6 — Major 6thF#m6 — Minor 6thF#7sus4 — Dominant 7th Sus4F#7sus2 — Dominant 7th Sus2

Extended

F#9 — Dominant 9thF#maj9 — Major 9thF#m9 — Minor 9thF#add9 — Add 9F#add11 — Add 11F#add2 — Add 2F#add#11 — Add Sharp 11F#11 — Dominant 11thF#13 — Dominant 13thF#6/9 — 6/9F#maj13 — Major 13thF#m(add2) — Minor Add 2F#m(add9) — Minor Add 9F#m(add11) — Minor Add 11F#mMaj7 — Minor Major 7thF#m11 — Minor 11thF#m13 — Minor 13thF#m6/9 — Minor 6/9F#7#11 — Dominant 7th Sharp 11F#9#11 — Dominant 9th Sharp 11F#13#11 — Dominant 13th Sharp 11F#9sus4 — Dominant 9th Sus4F#13sus4 — Dominant 13th Sus4F#maj7#11 — Major 7th Sharp 11F#maj9#11 — Major 9th Sharp 11F#mMaj9 — Minor Major 9thF#m9b5 — Half-Diminished 9th

Altered

F#7#9 — Dominant 7th Sharp 9F#7b9#9 — Dominant 7th Flat 9 Sharp 9F#13#9 — Dominant 13th Sharp 9F#7b9 — Dominant 7th Flat 9F#7#5 — Dominant 7th Sharp 5F#7b5 — Dominant 7th Flat 5F#7alt — Altered DominantF#7#9#5 — Dominant 7th #9 #5F#7b9b5 — Dominant 7th b9 b5F#7#9b5 — Dominant 7th #9 b5F#7sus4b9 — Dominant 7th Sus4 Flat 9F#9#5 — Dominant 9th Sharp 5F#9b5 — Dominant 9th Flat 5F#13b9 — Dominant 13th Flat 9F#7b13 — Dominant 7th Flat 13F#aug7 — Augmented 7thF#dim(maj7) — Diminished Major 7thF#augMaj7 — Augmented Major 7th