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Dominant family

A♭ dominant seventh sharp nine chord

A♭7♯9

A♭ dominant seventh sharp nine

Piano root position

  • Root
  • 3
  • 5
  • ♭7
  • ♯9

Guitar standard tuning

Fret 10

No barre: each note has its own finger.

E×ADGBe×1011121314A♭CG♭B

Finger: 1 index, 2 middle, 3 ring, 4 little

Notation treble clef

𝄞♭♭♭

Intervals

12 semitones
  1. A♭1
  2. ♭2
  3. 2
  4. B♯9
  5. C3
  6. 4
  7. ♭5
  8. E♭5
  9. ♯5
  10. 6
  11. G♭♭7
  12. 7
  • A♭ Root
  • C Major 3rd
  • E♭ Perfect 5th
  • G♭ Minor 7th
  • B Augmented 9th

About this chord

What is an A♭ dominant seventh sharp nine chord?

A♭7♯9 is built from 5 notes: A♭ (the root), C (the 3), E♭ (the 5), G♭ (the ♭7), B (the ♯9). Major and minor third at once: the gritty rock and funk chord.

Notes
A♭ · C · E♭ · G♭ · B
Formula
1 · 3 · 5 · ♭7 · ♯9
Also written
A♭7(♯9)
Found in
Outside the major and minor keys

Neighbours

Chords close to A♭7♯9

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