A7b9 Guitar Chord

How to play A7b9: a dominant 7th flat 9 built on A, with 1 voicing, the notes, and the intervals.

Chord Diagram

XX
A common voicing

The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.

More Voicings of A7b9

The same chord in other positions on the neck: movable shapes transposed to A. Open any of them in the Diagram Maker below to adjust the fingering.

XX
Open position
6XX
Fret 6
8X
Fret 8
11XX
Fret 11

Notes & Intervals in A7b9

NoteAC#GBb
IntervalR3b7b9

A7b9 is a dominant 7th flat 9 with A as its root. The full theoretical spelling is A, C#, E, G, Bb. This voicing omits the 5th, the tone guitarists drop first when fitting a chord onto six strings.

🚩 Report an incorrect spelling

Use This Chord

✏️ Edit in the Chord Diagram Maker 🔍 Look up any chord 📝 Put it in a Lyric Sheet 🎼 Build a Progression

All tools are free with no download. Customize the fingering, print it, or drop it straight into a chart.

🤲 Play A7b9 a way we don't show? Suggest your voicing and it may join the library (with a thank-you in your inbox).

Related Chords

← Browse all guitar chords