transpose.siteA7 chord (A dominant seventh)
The A7 chord is a dominant seventh chord built on A. A major chord plus a minor seventh. The tritone between the third and the seventh creates tension that wants to resolve to the chord a fourth higher.
A7 guitar chord
Common shape
Barre, root on 6th string (fret 5)
The left vertical line is the 6th (thickest) string. Numbers in dots are fingers (1 index · 2 middle · 3 ring · 4 little), × means don't play that string and ○ means open.
Play it the easy way with a capo
- Capo on fret 2 + G7 shape
- Capo on fret 5 + E7 shape
- Capo on fret 7 + D7 shape
With a capo on for the whole song, every other chord moves by the same number of frets.
A7 chord notes
| Degree | 1 (root) | 3 (major 3rd) | 5 (perfect 5th) | ♭7 (minor 7th) |
|---|---|---|---|---|
| Note | A | C♯ | E | G |
A7 piano chord
On piano, press these 4 notes together. Bass players usually play the root, A.
A7 usually resolves to D, a fourth higher.
Keys that use A7
- D major: V7
- B minor: VII7
Progressions in D major
- D – A7 – Bm – G (I – V – vi – IV, the most common pop progression)
- D – Bm – G – A7 (I – vi – IV – V, the '50s progression, ballads)
Transposing A7
One half step up, A7 becomes B♭7; one half step down, A♭7. To change the key of a whole PDF score, open it in the free PDF transposer.