A Dominant Seventh Chord on Piano

Also known as:
A Dominant 7th , A7 , Adom

Here you can learn how to play A Dominant Seventh Chord on the Piano. The A Dominant Seventh Chord has a dominant quality which includes a Major Third interval but has a minor Seventh rather than a Major Seventh. A Dominant Seventh Chord contains the notes A, C, E, G (although E can be omitted). The A Dominant Seventh Chord on Piano is a Seventh type chord which means it consists of a Triad (the Root A, the Third C, and the Fifth E) and the Seventh G.

Below you will find the notes, notation, degrees and intervals of the A Dominant Seventh Chord along with any related scales and chords. In the Piano view you can display the notes of the A Dominant Seventh Chord mapped out onto the Piano keyboard and switch between the notes, degrees, intervals. These are shown across two octaves to help visualise the different inversions of the chord.

Notes

A, C, E, G

Can be omitted: E

Notation

Degrees

NoteNumberName
A1Tonic
C3Mediant
E5Dominant
G7Subtonic

Intervals

NotesSemitonesInterval
A > A0Perfect Unison (P1)
A > C4Major 3rd (M3)
A > E7Perfect 5th (P5)
A > G10minor 7th (m7)
Root
Third
Fifth
Seventh
C
C
E
G
A
E
G
A
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Music Theory

Want to dig deeper and learn about the chord degrees and intervals, or see related scales and chords?

Learn more about A Dominant Seventh Chord

If you want to learn what chords are and much more, check out our free Fundamentals of Music Theory course. If you already know some of the basics, you can jump straight into the chords lesson.

Scales related to A Dominant Seventh Chord

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