A♭add9 (A♭ add 9): A♭ C E♭ B♭. Formula 1 3 5 9. A major triad with an added 9th and no 7th: bright and shimmering, everywhere in pop and rock guitar.

Made of4

Notes4

Contains & part of28

Scales that contain it26

Extensions2

Inversions4

  • A♭add9

    Root position · A♭ C E♭ B♭

  • A♭add9/C

    1st inversion · C E♭ B♭ A♭

  • A♭add9/E♭

    2nd inversion · E♭ B♭ A♭ C

  • A♭add9/B♭

    3rd inversion · B♭ A♭ C E♭

Relatives3

Type1

Genres that use it2

Where it goes7

One small move away6

Its dominant1