What notes are in a A7 chord?

A7 is A, C#, E, G: the 1, 3, 5, ♭7 of A.

Guitar chord · Dominant 7th

A7 chord (A Dominant 7th)

Tense 7th chord driving blues and rock progressions toward resolution.

Notes AC#EG

Formula 1 3 5 ♭7

Shapes 3 on this page

A7 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.

E7-Shape (6th String Root) 5 7 5 6 5 5

A7-Shape (5th String Root) x 0 2 0 2 0

Open / C7 Shape x 12 11 12 10 9

Interactive chord diagram

A7 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 A7

These scales start on A and contain every note of the chord, so they fit when A7 is the chord of the moment.

A Mixolydian A Phrygian Dominant A Lydian Dominant A Half-Whole Diminished A Bebop Dominant A Mixolydian b6 A Bebop Dorian A Phrygian b4 A Mixolydian b2 A Lydian #2 #6 A Lydian Dominant b6 A Hungarian Major A Tritone

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Practise A7 and every other chord anywhere, even offline.

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Questions

What notes are in a A7 chord?: A7 is A, C#, E, G: the 1, 3, 5, ♭7 of A.
How do you play A7 on guitar?: E7-Shape (6th String Root): 5 7 5 6 5 5; A7-Shape (5th String Root): x 0 2 0 2 0; Open / C7 Shape: x 12 11 12 10 9 (low E to high E, x = don't play the string).
What scale goes with A7?: Scales on A that contain every note of A7: A Mixolydian, A Phrygian Dominant, A Lydian Dominant, A Half-Whole Diminished, A Bebop Dominant, A Mixolydian b6.

Dominant 7th chords in every key

C7 C#7 D7 Eb7 E7 F7 F#7 G7 Ab7 A7 Bb7 B7