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F#m9b5 chord

F# Half-Diminished 9th

F#m9b5 · Piano chord

1F#3b3A3b5C4b7E49G#4
C3b3b5C4b7C519

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Notes

F# – A – C – E – G#

Formula

1 – b3 – b5 – b7 – 9

Practice Note

The half-diminished ninth is a minor-key ii chord commonly paired with Locrian natural 2.

Try next

F#m7b5 · SimplerF#m9 · SiblingB7b9 · Next in ii–VEm · ii–V–i target

About F#m9b5

The F#m9b5 chord sounds distinctive, with a half-diminished 9th character. Its notes are F#, A, C, E, G#.

All F# chords (58)

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#dim7 — Diminished 7thF#m7b5 — Half-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 9th

Altered

F#7#9 — Dominant 7th 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