CHORD · DOMINANT 7TH

A7 (A7)

The A7 chord (A7) contains 4 notes: A, C#, E, G. A major triad plus a minor 7th — restless, contains a tritone, wants to resolve.

CDEFGABCDEFGABCC#

Notes

Click any note to hear it.

Intervals from root

DegreeNoteIntervalQualityHalf steps
1A1Perfect Unison0
2C#3Major 3rd4
3E5Perfect 5th7
4Gb7Minor 7th10

Where A7 shows up

Progressions that use this chord, and the role it plays in each.

Build A7 until it's instinct

Build A7 in Build the Chords.

▶ Play Now