The B diminished chord (abbreviated "Bdim chord") is a triad consisting of the notes B, D, and F. The chord is formed by lowering the fifth of a B minor chord a half step.

Name
B diminished chord
Synonym
B diminished triad
Notes
B D F
Intervals
1 3 5
Chord symbol
Bo
Alternative symbols
Bdim Bm(b5) Bmb5
Type
triad (three-note chord)

Bdim chord on piano

Bdim chord on guitar

Bdim chord on ukulele

Bdim chord on the staff