A7 chord

A7

A7 ukulele fretboard1

Notes: G · C# · E · A

Voicing: 1 / 16

Root

CC#DEbEFF#GAbABbB

Chord type

majmin7m7maj769add9sus2sus4dimaug

Dominant job in D

Add G to an A triad and the chord points at D. That is why so many key-of-D strummers meet A7 long before they meet jazz voicings.

Small grip, easy to half-mute

Near-nut dominant shapes pack fretting tight. One flat knuckle and the seventh vanishes—leaving a chord that looks right on paper but will not pull.

Blues and swing without leaving gCEA

The same flat seventh that resolves to D also colours shuffle feels and old-time turnarounds. A7 is seasoning, not a separate genre.

Colour & context

When charts reach for A7

A7 carries a wink of tension—brighter than Am, less settled than A major. On ukulele it often arrives right before D, like a door you already know is opening.

Living-room moments

  • D–G–A7–D loops that need a shove home without changing key.
  • Bluesy endings and turnarounds that hang on dominant colour for a bar.
  • Swing-leaning strums and island-flavoured charts where sevenths are seasoning.
  • Verses in D that want a little sass before a plain A major chorus.

Teaching & gigs

  • Showing V7→I in D without whiteboard theory—play A7, then D, let ears learn.
  • Split uke parts: one player on open A7, another on a thinner higher grip.
  • Arrangements that treat A7 as blues garnish inside otherwise major keys.
  • Charts marked A7 on the turnaround while the rest of the tune stays on A or D family chords.
Hear the seventh

Make A7 lean before you resolve

Set fretting from the photo, prove the flat seventh, then land on D once so your ear knows the chord is doing its job.

1

Fret for C♯ and G on purpose

A7 is not Am and not plain A—both the major third and the flat seventh need to be intentional fretting choices, not accidents.

2

Pluck one string at a time

If G is dead, curl the guilty fingertip; crushing the whole hand usually kills a neighbour open string too.

3

Resolve to D for one bar

Hold A7, strum D. Relief you can feel means the dominant colour was really there.

4

Rotate the board to match your hold

Horizontal or left-handed views keep the live neck honest while you chase a clean seventh.

On this site

A7 on a ukulele board you can actually turn

Visual ukulele view

Finger markers sit on real strings so the A7 layout matches what you are holding.

Rotatable fretboard

Switch horizontal or left-handed layout without leaving for another chart image.

Colour finger map

Keep one fingering plan so A7↔D switches stay steady under a metronome.

Full chart for D-family neighbours

Drill A7 here, then hop to D, G, Bm, or Em on the big grid for whole-key practice.

First questions

A7 ukulele chord FAQ

Q1.A, Am, or A7—which does the chart mean?

Plain A is major triad; Am lowers the third to C natural; A7 keeps the major third (C♯) and adds G as the flat seventh. If the sheet says A7, do not swap in Am—the pull toward D disappears.

Q2.What key is A7 usually doing on ukulele?

Most often it is V7 of D: A7 wants to land on D (or sometimes D7 in bluesy loops). You will also hear it as dominant colour inside swing and island strums.

Q3.Why does my A7 sound like plain A?

The G (flat seventh) is missing or muted. Pluck string by string against the visual board until that seventh speaks—dominant chords feel unfinished without it.

Q4.Is A7 only for jazz players?

No. It is in beginner D-major songbooks, blues turnarounds, and plenty of pop charts that borrow a little swing. The grip is small; the job is motion.

Progressions that keep calling A7

Try D–A7–G–D at a crawl. When A7 feels polite instead of hungry, the flat seventh is probably muted—fix that before you speed up.

Then hang on A7 for two bars without resolving. That unfinished feeling is exactly what songwriters borrow for blues tags and comic pauses.

V7 of D
Flat seventh
Blues turn
gCEA

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