A7 chord on ukulele

A7 is A, C♯, E and G. The easiest shape is 0-1-0-0. Hit Play and watch each string light as it sounds.

0-1-0-0 · open · easy

Notes: A · C♯ · E · G
Formula: 1 · 3 · 5 · ♭7
First shape: 0-1-0-0

How to play A7 on ukulele

Shape 1, 0-1-0-0, reading from the G string on the left:

C♯: index finger, 1st fret of the C string.
Leave the G, E and A strings open: G, E and A.

If an open string sounds dead, a fingertip is leaning on it. Come down more on the tips, with your knuckles bent.
Strum with the pad of your index finger or thumb, all four strings, across the spot where the neck meets the body.

Other ways to play A7

6-7-5-7: movable shape at the 5th fret, medium. Same notes, stacked differently, so it sounds a little different.
9-9-9-10: movable shape at the 9th fret, medium. Higher up the neck it sounds brighter; handy when another guitar is already playing a lower shape.

A7 the capo way

A capo turns an open chord into A7: capo on the 2nd fret and play the open G7 shape (0-2-1-2), capo on the 5th fret and play the open E7 shape (1-2-0-2) or capo on the 7th fret and play the open D7 shape (2-2-2-3). Handy when the rest of the song's chords also have open shapes in that position.

Moving between A7 and its neighbours

Songs rarely hold A7 for long. Here's what your hand does on the moves that come up most.

D (the V7 pulls home a fifth below): A7 (0-1-0-0) to D (2-2-2-0): your index finger lands on the G string, 2nd fret, the middle finger comes down on the C string, 2nd fret, the ring finger comes down on the E string, 2nd fret. Nothing carries over, so drill it slowly, lifting and landing all fingers at once. The two chords share A, which is why the change sounds smooth. D on ukulele
Dmaj7 (I in D major): A7 (0-1-0-0) to Dmaj7 (2-2-2-4): move the index finger to the G string, 2nd fret, the middle finger comes down on the C string, 2nd fret, the ring finger comes down on the E string, 2nd fret. Nothing carries over, so drill it slowly, lifting and landing all fingers at once. Shared notes: A and C♯. Dmaj7 on ukulele
Bm7 (vi in D major): A7 (0-1-0-0) to Bm7 (2-2-2-2): your index finger lands on the G string, 2nd fret, the middle finger comes down on the C string, 2nd fret, the ring finger comes down on the E string, 2nd fret. No finger can stay, so practice lifting all of them together and landing the new shape as a unit. A carries over from one chord to the other. Bm7 on ukulele

A7 is a dominant seventh chord: a major triad with a flattened seventh on top. All 4 notes of A7 fit on the ukulele's four strings. The slow arpeggio button above makes that quality easy to hear.

Practice A7 in two minutes

Arpeggiate 0-1-0-0 from the lowest string: G, C♯, E, A. Then strum it and listen for the same 4 notes together. Finish by moving between 0-1-0-0 and 6-7-5-7 to learn two positions of the same chord.

Keys and progressions with A7

In A major, I7–IV7–V7 (12 bars) on ukulele is A7 (0-1-0-0), D7 (2-2-2-3) and E7 (1-2-0-2). About the 12-bar blues.

In D major, ii–V–I on ukulele is Em7 (0-2-0-2), A7 (0-1-0-0) and Dmaj7 (2-2-2-4). About the jazz cadence.

A7 on guitar and piano

A7 on guitar and piano uses the same 4 notes in a different layout. See all three together.

Related A chords on ukulele

Other dominant seventh chords

A7 on ukulele: questions

What notes are in A7 on ukulele?

A, C♯, E and G. In the 0-1-0-0 shape the strings play G (G string, open), C♯ (C string), E (E string, open) and A (A string, open).

What's the easiest way to play A7 on ukulele?

0-1-0-0, the shape at the top of this page. Open strings do part of the work, so no barre.

Is A7 a barre chord on ukulele?

Not the usual shape: 0-1-0-0 needs no barre.

Which string does A7 start on?

In the 0-1-0-0 shape the lowest string you play is the G string, open, which is G, the minor seventh.

Shapes and sound are generated from the notes A, C♯, E and G and tested automatically. Updated September 2026.