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