Bbdim7 chord
Bb diminished 7th · also written A#dim7
C4
Bb
C5
Db
Fb
G
Want it in context? Open Bbdim7 on the full piano.
Notes
- BbR
- Dbb3
- Fbb5
- G6
Formula: R – b3 – b5 – 6
Bbdim7 inversions
The same notes, with a different note in the bass.
Root position Bbdim7
C4
Bb
C5
Db
Fb
G
1st inversion Bbdim7/Db
C5
Db
Fb
G
Bb
C6
2nd inversion Bbdim7/Fb
C5
Fb
G
Bb
C6
Db
3rd inversion Bbdim7/G
C5
G
Bb
C6
Db
Fb
More Bb chords
Diminished 7th chords in other keys
FAQ
What notes are in the Bbdim7 chord?
The Bb diminished 7th chord (Bbdim7) has 4 notes: Bb, Db, Fb and G.
How do you play Bbdim7 on the piano?
Put your right hand on Bb, Db, Fb and G, starting from Bb. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).
What is the formula of a diminished 7th chord?
R – b3 – b5 – 6 (in semitones from the root: 0, 3, 6, 9).
Is Bbdim7 the same as A#dim7?
Yes. Bb and A# are the same key on the piano (enharmonic), so Bbdim7 and A#dim7 sound the same.