← Chords
Go to the app!
A add9 (added ninth) chord
The Aadd9 chord (add9 (added ninth)) is made of the notes A, C♯, E, B. Its formula compared with the major scale is 1 3 5 9.
Aadd9
Ninths · 4 notes
Note names
How it is built
| Degree | Note | Interval from the root |
|---|---|---|
| 1 | A | Unison |
| 3 | C♯ | Major third |
| 5 | E | Perfect fifth |
| 9 | B | Major ninth |
Inversions
- Aadd9A C♯ E BRoot position
Frequently asked questions
- Which notes make up the Aadd9 chord?
- The notes are A, C♯, E, B.
- What is the formula of the Aadd9 chord?
- The formula is 1 3 5 9: major third, perfect fifth, major ninth.
From theory to practice
With GEN you generate ever-new exercises on the scales you are studying.