Bdim7 chord
The B diminished seventh chord (abbreviated "Bdim7 chord") is a four-note chord consisting of the notes B, D, F, and A♭. The chord is formed by adding a diminished seventh to a B diminished chord.
Name
B diminished seventh chord
Synonym
B fully diminished chord
Notes
B D F A♭
Intervals
1 ♭3 ♭5 ♭♭7
Chord symbol
Bo7
Alternative symbols
Bdim7 Bdim Bo
Type
Tetrad (four-note chord)