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A7b9 Guitar Chord

A dramatic, tense sound. Common in jazz and flamenco. The flat ninth creates a strong chromatic pull toward resolution. On guitar, the fifth is sometimes omitted.

Guitar

Strings X–0–2–3–2–3

How to play the A7b9 chord on guitar

Read the string pattern X–0–2–3–2–3 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) Muted
5th string (A) Open
4th string (D) Fret 2 · index finger
3rd string (G) Fret 3 · middle finger
2nd string (B) Fret 2 · index finger
1st string (high E) Fret 3 · ring finger

Other names for the A7b9 chord

Other names: A 7th flat 9

Music theory name: seventh flat nine chord

Common name: A 7b9 chord

Notes and intervals in the A7b9 chord

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

All variations

Open
X–0–2–3–2–3
Fret 5
5–7–5–6–5–6
Fret 6
X–X–7–6–8–6
Fret 11
X–12–11–12–11–12

Songs using A7b9