A flat dominant ninth piano chord - Ab9

The A flat dominant ninth chord is a 5-note chord consisting of the notes Ab, C, Eb, Gb and Bb.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Ab9.

Interactive piano diagram for the A flat dominant ninth chord

Piano keyboard displaying the A flat dominant ninth chord with the notes G#AbB#CD#EbF#GbA#Bb

Extended Chords

Chords that are a superset of Ab9. The chords include more notes but always Ab, C, Eb, Gb and Bb.

Reduced chords

Chords that are a subset of Ab9. These contain less notes but all of them are included in Ab9.

Scales with Ab9

Below you find all scales that include Ab9:

  • bebop
  • mixolydian
  • mixolydian b6
  • lydian dominant
  • lydian minor
  • bebop minor
  • composite blues
  • messiaen's mode #3
  • chromatic

A flat dominant ninth piano chord chart image

In case you prefer a non-interactive variant of the chord chart, we've embedded a PNG image below that shows the notes for the the Ab9 chord. Feel free to save or share the image as needed.

Piano chord chart for the A flat dominant ninth chord (Ab9). The notes Ab, C, Eb, Gb and Bb are highlighted.