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Guitar chord · Dominant 7sus4b9

A7sus4b9 chord (A Dominant 7sus4b9)

Dominant 7th with a suspended 4th and a flat 9th: it comes from the Dorian ♭2 scale.

Notes ADEGBb
Formula 1 4 5 ♭7 ♭9
Shapes 3 on this page

A7sus4b9 chord shapes

Tap a diagram to strum it. Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. Blue dots are the root, A.

6th String Root 5 x 5 3 3 x
5th String Root x 12 12 12 11 x
4th String Root x x 7 7 8 6

Interactive chord diagram

A7sus4b9 on the fretboard

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E ✕ ✕ ✕ ✕ ✕ ✕

Tap any note to hear it.

Scales to play over A7sus4b9

These scales start on A and contain every note of the chord, so they fit when A7sus4b9 is the chord of the moment.

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Questions

What notes are in a A7sus4b9 chord?
A7sus4b9 is A, D, E, G, Bb: the 1, 4, 5, ♭7, ♭9 of A.
How do you play A7sus4b9 on guitar?
6th String Root: 5 x 5 3 3 x; 5th String Root: x 12 12 12 11 x; 4th String Root: x x 7 7 8 6 (low E to high E, x = don't play the string).
What scale goes with A7sus4b9?
Scales on A that contain every note of A7sus4b9: A Phrygian, A Phrygian Dominant, A Dorian b2, A In Sen, A Mixolydian b2.

Dominant 7sus4b9 chords in every key

More A chords