What notes are in the A7♯9 chord?

A7♯9 (A dominant 7♯9 (hendrix)) contains A, C♯, E, G, B♯ — formula 1 3 5 ♭7 ♯9.

How do you play A7♯9 on guitar?

A common shape is 532223 (low E to high E, x = muted string, around fret 2). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.

What scale goes with A7♯9?

Good choices to solo over A7♯9: A Diminished (half-whole).

A7♯9 Chord on Guitar

A7♯9 is the A dominant 7♯9 (hendrix) chord — 5 notes (A, C♯, E, G, B♯) built from the formula 1 3 5 ♭7 ♯9. Below are playable shapes across the fretboard, the keys it belongs to and the scales to use when soloing over it.

Notes: A · C♯ · E · G · B♯Formula: 1 · 3 · 5 · ♭7 · ♯9Hear it and see it on the fretboard ▸

A7♯9: Chord shapes (open & barre)

fret 2
fret 5
fret 6
fret 11

A7♯9: Shell voicings (jazz)

R-3-7
R-3-7
R-7-3
R-7-3

Scales to play over A7♯9

A Diminished Scale (Half-whole)

Ordered from the most common choice. All of them contain A, C♯, E, G, B♯.

Other A chords

Triads

Sevenths

Sixths

Added

Extended

Dominant 7♯9 (Hendrix) chords in other keys

FAQ

What notes are in the A7♯9 chord?: A7♯9 (A dominant 7♯9 (hendrix)) contains A, C♯, E, G, B♯ — formula 1 3 5 ♭7 ♯9.
How do you play A7♯9 on guitar?: A common shape is 532223 (low E to high E, x = muted string, around fret 2). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.
What scale goes with A7♯9?: Good choices to solo over A7♯9: A Diminished (half-whole).