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A♭ dominant ninth chord
The A♭9 chord (dominant ninth) is made of the notes A♭, C, E♭, G♭, B♭. Its formula compared with the major scale is 1 3 5 ♭7 9.
A♭9
Ninths · 5 notes
Note names
How it is built
| Degree | Note | Interval from the root |
|---|---|---|
| 1 | A♭ | Unison |
| 3 | C | Major third |
| 5 | E♭ | Perfect fifth |
| ♭7 | G♭ | Minor seventh |
| 9 | B♭ | Major ninth |
Inversions
- A♭9A♭ C E♭ G♭ B♭Root position
Frequently asked questions
- Which notes make up the A♭9 chord?
- The notes are A♭, C, E♭, G♭, B♭.
- What is the formula of the A♭9 chord?
- The formula is 1 3 5 ♭7 9: major third, perfect fifth, minor seventh, major ninth.
From theory to practice
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