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A♭ dominant seventh chord

The A♭7 chord (dominant seventh) is made of the notes A♭, C, E♭, G♭. Its formula compared with the major scale is 1 3 5 ♭7.

A♭7

Sevenths · 4 notes

Note names

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How it is built

DegreeNoteInterval from the root
1A♭Unison
3CMajor third
5E♭Perfect fifth
♭7G♭Minor seventh

Inversions

  • A♭7A♭ C E♭ G♭Root position
  • A♭7/CC E♭ G♭ A♭First inversion
  • A♭7/E♭E♭ G♭ A♭ CSecond inversion
  • A♭7/G♭G♭ A♭ C E♭Third inversion

Which keys it belongs to

A♭7 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 A♭7 chord?
The notes are A♭, C, E♭, G♭.
What is the formula of the A♭7 chord?
The formula is 1 3 5 ♭7: major third, perfect fifth, minor seventh.

Texts and tools by , professional musician and developer. Last updated: October 8, 2026.

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