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A7#9 Guitar Chord

A raw, urgent sound containing both a major third and a minor third (augmented ninth = minor third). Made famous by Jimi Hendrix in "Purple Haze". A staple of blues-rock and funk.

Guitar

Strings 5–7–5–6–8–8

How to play the A7#9 chord on guitar

Read the string pattern 5–7–5–6–8–8 from the low E string to the high E string. Numbers in the pattern are frets; numbers in the colored dots are left-hand fingers. X means a muted string and 0 means an open string.

6th string (low E) Fret 5 · index finger
5th string (A) Fret 7 · ring finger
4th string (D) Fret 5 · index finger
3rd string (G) Fret 6 · middle finger
2nd string (B) Fret 8 · little finger
1st string (high E) Fret 8 · little finger

Notation for A7#9 chord

Other names: A 7th sharp 9, A Hendrix chord

Music theory name: seventh sharp nine chord

Common name: A Hendrix chord

Intervals and tones in A7#9 chord

Note Interval
A Root
C# Major 3rd
E Perfect 5th
G Minor 7th
C Augmented 9th

All Variations

Fret 5
5–7–5–6–8–8
Fret 6
X–X–7–6–8–8
Fret 8
X–0–10–9–8–9
Fret 11
X–12–11–12–13–X

More chords with A as the root

The same chord type in other keys