A Dominant 7th Guitar Chord (A7)

A Dominant 7th (A7) is built from A, C#, E, G, which is the 1P - 3M - 5P - 7m formula measured from the root A. This page shows 4 fingerings with fretboard diagrams.

7th
Notes: A · C# · E · GIntervals: 1P – 3M – 5P – 7m

Fingerings for A7

Notes in A7

  • A1P
  • C#3M
  • E5P
  • G7m

How to play A7

A Dominant 7th Guitar Chord (A7) is tense and unresolved, which is what makes it want to move.

Beginner tip

Mute the strings you do not play — a dominant seventh with a ringing open string loses its pull.

Practice idea

Resolve it down a fifth to the tonic and listen for the tension release.

A7 FAQ

What notes are in A Dominant 7th?
A Dominant 7th (A7) contains A, C#, E, G. In interval terms that is 1P - 3M - 5P - 7m above the root A.
How do you play A7 on guitar?
The most common shape here is "A7": low E muted, A open, D at fret 2, G open, B at fret 2, high E open.
Is A7 hard for beginners?
It sits in the seventh family. Mute the strings you do not play — a dominant seventh with a ringing open string loses its pull.