A dominant 7th chord on piano
The A dominant 7th chord is A–C#–E–G. Tap the keys below to hear it.
A7A · C# · E · G
Tap the keys to hear them
A7 is the V7 of D major: the C# inside it leans toward D. In a 12-bar blues in D, A7 is the bar-nine arrival.
How the A dominant 7th chord is built
Fingerings & inversions
Standard fingerings use the thumb (1), the little finger (5), and either the index (2) or middle finger (3). Hand size and musical context change what feels natural. Switch Fingers on above to see 1-2-3-5 land for A7.
| Position | Notes (bottom → top) | Right hand | Left hand |
|---|---|---|---|
| Root position | A – C# – E – G | 1-2-3-5 | 5-3-2-1 |
| 1st inversion | C# – E – G – A | 1-2-4-5 | 5-4-2-1 |
| 2nd inversion | E – G – A – C# | 1-2-3-5 | 5-3-2-1 |
| 3rd inversion | G – A – C# – E | 1-2-4-5 | 5-3-2-1 |
Inversion diagrams
The inversion buttons above play all 4 shapes of A7.
Where A7 shows up
A7 works as the V7 of D major: build the tension, then resolve home to D. The G on top is what makes the pull audible.
Hear it drive a 12-bar blues in A: A7–D7–E7.
Common questions
What notes are in the A dominant 7th chord?
The A dominant 7th chord is made up of A, C#, E, G. C#, the black key between C and D, is the only raised note in the shape; A and E and G stay white.
What fingers should I use to play A7 on piano?
In root position, the standard fingering is 1-2-3-5 in the right hand and 5-3-2-1 in the left hand (1 = thumb, 5 = little finger). A7 puts finger 2 on C#, the chord's only black key.
What's the difference between A7 and Amaj7?
A7 has a minor 7th on top, G, which makes it sound restless and ready to resolve. Amaj7 raises that note a half step, which sounds settled and warm instead. Same A–C#–E triad underneath, one note apart, very different jobs.
More A chords
Reviewed by
Composer, arranger and music educator. BA Music (LIPA), MA Composition (University of Salford).
Last updated 2026-08-19