A 7th chord

A7 chord for piano with keyboard diagram.
Explanation: The A seventh is a dominant four-note chord. You can see the four notes of the A seventh chord marked in red color. The chord is often abbreviated as A7.
Omissions: A7(no3): A - E - G; A7(no5): A - C# - G.
Theory: The A seventh chord is constructed with a root, a major thirdAn interval consisting of four semitones, a perfect fifthAn interval consisting of seven semitones and a minor seventhAn interval consisting of ten semitones and the 7th scale degree.
Fingerings: Little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).


A7 chord diagram with marked notes A - C# - E - G
Notes: A - C# - E - G
Left hand: 5-3-2-1
Right hand: 1-2-3-5

Ab7 chord ‹ Previous • Next › A#7 chord

+  Show inversions: A7/C#, A7/E, A7/G -  Hide inversions

A7 - inversions

Explanation: The images below show the three inversions of the A dominant seventh chord. A7/C# is an A dominant seventh with C# as the bass note, A7/E is an A dominant seventh with E as the bass note and A7/G is an A dominant seventh with G as the bass note.


A7/C# chord diagram
1st inversion


A7/E chord diagram
2nd inversion


A7/G chord diagram
3rd inversion

See also A7 chords with alternative bass notes ›

A chord categories

A Am A7 Am7 Amaj7 AmM7 A6 Am6 A6/9 A5 A9 Am9 Amaj9 A11 Am11 Amaj11 A13 Am13 Amaj13 Aadd A7-5 A7+5 Asus Adim Adim7 Am7b5 Aaug Aaug7