← Chords
Go to the app!
B diminished seventh chord
The Bdim7 chord (diminished seventh) is made of the notes B, D, F, A♭. Its formula compared with the major scale is 1 ♭3 ♭5 ♭♭7.
Bdim7
Sevenths · 4 notes
Note names
How it is built
| Degree | Note | Interval from the root |
|---|---|---|
| 1 | B | Unison |
| ♭3 | D | Minor third |
| ♭5 | F | Diminished fifth |
| ♭♭7 | A♭ | Diminished seventh |
Inversions
- Bdim7B D F A♭Root position
- Bdim7/DD F A♭ BFirst inversion
- Bdim7/FF A♭ B DSecond inversion
- Bdim7/A♭A♭ B D FThird inversion
Frequently asked questions
- Which notes make up the Bdim7 chord?
- The notes are B, D, F, A♭.
- What is the formula of the Bdim7 chord?
- The formula is 1 ♭3 ♭5 ♭♭7: minor third, diminished fifth, diminished seventh.
From theory to practice
With GEN you generate ever-new exercises on the scales you are studying.