A♭9 chord on piano
Ab dominant 9th: A♭ · C · E♭ · G♭ · B♭. It sounds the funk and soul workhorse: a dominant 7th wearing colour.
NotesA♭ C E♭ G♭ B♭
Built fromroot + major 3rd + perfect 5th + minor 7th + major 9th
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On the keyboard
Fingering
Right hand, root position: A♭ — finger 1 · C — finger 2 · E♭ — finger 3 · G♭ — finger 4 · B♭ — finger 5. (1 = thumb, 5 = little finger.)
Inversions
The same notes in a different order. Inversions are how players move between chords without jumping:
- RootA♭ – C – E♭ – G♭ – B♭
- 1stC – E♭ – G♭ – B♭ – A♭
- 2ndE♭ – G♭ – B♭ – A♭ – C
- 3rdG♭ – B♭ – A♭ – C – E♭
- 4rdB♭ – A♭ – C – E♭ – G♭