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Guitar chord · Dominant 9sus4

A9sus4 chord (A Dominant 9sus4)

7sus4 with a 9th: the 3rd is replaced by the 4th, giving an open, unresolved dominant.

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

A9sus4 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 4 3 x
5th String Root x 0 0 0 0 0
4th String Root x x 7 7 8 7

Interactive chord diagram

A9sus4 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 A9sus4

These scales start on A and contain every note of the chord, so they fit when A9sus4 is the chord of the moment.

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Questions

What notes are in a A9sus4 chord?
A9sus4 is A, D, E, G, B: the 1, 4, 5, ♭7, 9 of A.
How do you play A9sus4 on guitar?
6th String Root: 5 x 5 4 3 x; 5th String Root: x 0 0 0 0 0; 4th String Root: x x 7 7 8 7 (low E to high E, x = don't play the string).
What scale goes with A9sus4?
Scales on A that contain every note of A9sus4: A Minor, A Dorian, A Mixolydian, A Bebop Dominant, A Mixolydian b6, A Bebop Dorian.

Dominant 9sus4 chords in every key

More A chords