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Chord & Fret

F7(b9) — dominant flat ninth

Notes in F7(b9): F – A – C – Eb – GbFormula: 1 – 3 – 5 – b7 – b9

In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.

The 7(b9) is a dramatic dominant. The minor ninth intensifies the resolution, especially when the target chord is minor.

The same chord on all four instruments

F7(b9), 1 3 1 2 1 2F7(b9)141213FCEbACGb
Guitar
F7(b9), 1 3 1 2 1 2F7(b9)141213FCEbACGb
Electric guitar
F7(b9), 3 2 4 4F7(b9)2134FAEbGb
Cavaquinho
F7(b9), 8 6 5 8F7(b9)53214EbGbAF
Ukulele

Where to use it: A dominant that resolves to a minor chord.

Every region of the neck hides more shapes of F7(b9). In Chord & Fret, you hear every shape strummed string by string, in each instrument's own voice; compare positions with their difficulty marked; and set a capo — the diagrams redraw above it. Start free. Unlock everything with Pro. Plays offline.

See the whole neck in Chord & Fret →

Part of the Altered dominants family.

Other chords in this family

F7(#9)F7(#11)F7(b13)F7alt

See all chord types and qualities →