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Guitar chords · Dominant 7th sharp 9th

F♯7♯9 chord on guitar (F#7#9)

F♯7♯9 (F♯ sharp 9th) has five notes: F♯, A♯, C♯, E and G𝄪 (played as A), the , 3, 5, ♭7 and ♯9.

Shapes

How to play F♯7♯9

Strum a shape to hear it, or pick it one string at a time. R marks the ; the other numbers are the chord tones.

F♯7♯9 has no common . Play it as the E shape at 2 or the A shape at fret 9. A keeps its fingering anywhere on the neck: slide it up or down and the , on the lowest played string, names the chord.

  • E shape · fret 2

    2fr×R♭73♭7♯9F♯EA♯EG𝄪
  • A shape · fret 9

    8fr××R3♭7♯9F♯A♯EG𝄪
Name a shape you're holding: the chord finder

Notes and formula

What makes F♯7♯9 dominant 7th sharp 9th

A 7♯9 chord is a chord with a raised 9th on top. The ♯9 sounds like a minor 3rd against the major 3rd, a deliberate clash; the chord is known as the Hendrix chord, at home in blues, funk and rock.

  • 1Root: the note the chord is named after. Keep it.
  • 3Essential: makes the chord what it is. Never drop it.
  • 5Optional: drop it first when you run out of fingers.

The 3rd, the ♭7th and the ♯9th make F♯7♯9 a sharp 9th chord; you can leave out the 5th.

  1. F♯Rroot
  2. A♯3essential
  3. C♯5optional
  4. E♭7essential
  5. G𝄪♯9essential
EADGBE0135791215F♯F♯F♯F♯F♯F♯F♯F♯EG𝄪A♯C♯EG𝄪A♯C♯EG𝄪A♯EG𝄪A♯C♯EG𝄪A♯C♯EG𝄪A♯C♯EG𝄪A♯C♯EG𝄪A♯C♯E
  • F♯, the root
  • Other chord tones

As a V chord, F♯7♯9 resolves to B or, more often, Bm: the V7♯9–i move.

F♯7♯9 and G♭7♯9 are the same chord with two names: same , same sound. Which one you see depends on the key the song is written in.

Keys

Keys with F♯7♯9

F♯7♯9 fits no major or minor key: its ♯9 (G𝄪, usually written A) rubs against the major 3rd on purpose. It is the sound of blues, funk and rock, played as the I chord of a blues in F♯ or as a V chord resolving to B.

Slash chords

F♯7♯9 over another bass note

A keeps F♯7♯9 on top and puts another note in the bass: the letter after the slash is the lowest note you play.

  • F♯7♯9/A♯

    F♯7♯9 with its 3rd, A♯, in the bass.

  • F♯7♯9/C♯

    F♯7♯9 with its 5th, C♯, in the bass.

  • F♯7♯9/E

    F♯7♯9 with its ♭7th, E, in the bass.

Questions

F♯7♯9, in short

What notes are in the F♯7♯9 chord?
F♯7♯9 (F♯ sharp 9th) has five notes: F♯, A♯, C♯, E and G𝄪 (played as A), the , 3, 5, ♭7 and ♯9.
How do you play F♯7♯9 on guitar?
F♯7♯9 has no common . Play it as the E shape at 2 or the A shape at fret 9.
What key is F♯7♯9 in?
F♯7♯9 fits no major or minor key: its ♯9 (G𝄪, usually written A) rubs against the major 3rd on purpose. It is the sound of blues, funk and rock, played as the I chord of a blues in F♯ or as a V chord resolving to B.
Is F♯7♯9 the same as G♭7♯9?
Yes: same frets, same sound, different name. F♯7♯9 is the spelling in B major, B minor and G♯ minor; G♭7♯9 only in C♭ major and A♭ minor, which most players write as B major and G♯ minor.
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