A♭9 (A♭ dominant 9th): A♭ C E♭ G♭ B♭. Formula 1 3 5 ♭7 9. A dominant 7th with a 9th: full and funky, the chord of funk and soul vamps.

Made of5

Notes5

Contains & part of9

Scales that contain it9

Inversions5

  • A♭9

    Root position · A♭ C E♭ G♭ B♭

  • A♭9/C

    1st inversion · C E♭ G♭ B♭ A♭

  • A♭9/E♭

    2nd inversion · E♭ G♭ B♭ A♭ C

  • A♭9/G♭

    3rd inversion · G♭ B♭ A♭ C E♭

  • A♭9/B♭

    4th inversion · B♭ A♭ C E♭ G♭

Relatives6

Type1

Genres that use it5

Where it goes3

One small move away2

Its dominant1