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A dominant seventh chord
The A7 chord (dominant seventh) is made of the notes A, C♯, E, G. Its formula compared with the major scale is 1 3 5 ♭7.
A7
Sevenths · 4 notes
Note names
How it is built
| Degree | Note | Interval from the root |
|---|---|---|
| 1 | A | Unison |
| 3 | C♯ | Major third |
| 5 | E | Perfect fifth |
| ♭7 | G | Minor seventh |
Inversions
- A7A C♯ E GRoot position
- A7/C♯C♯ E G AFirst inversion
- A7/EE G A C♯Second inversion
- A7/GG A C♯ EThird inversion
Which keys it belongs to
A7 is a diatonic chord, that is, it comes from a degree of the scale, in these keys:
Frequently asked questions
- Which notes make up the A7 chord?
- The notes are A, C♯, E, G.
- What is the formula of the A7 chord?
- The formula is 1 3 5 ♭7: major third, perfect fifth, minor seventh.
From theory to practice
With GEN you generate ever-new exercises on the scales you are studying.