Chord

B♭dim chord

B♭dim is a diminished chord with the notes B♭, D♭, F♭. The same chord spelled from A♯ is A♯dim.

B♭1

D♭♭3

F♭♭5

Intervals

Note	Interval	Semitones
B♭	root	0
D♭	minor 3rd	3
F♭	diminished 5th	6

Inversions

Root position	B♭ – D♭ – F♭
1st inversion	D♭ – F♭ – B♭ (B♭dim/D♭)
2nd inversion	F♭ – B♭ – D♭ (B♭dim/F♭)

Keys that contain B♭dim

vii° in B major ii° in G♯ minor

Related chords

B♭B♭7 B♭maj7 B♭6 B♭add9 B♭sus4

How to build a diminished chord

A diminished triad stacks two minor 3rds: root, minor 3rd and diminished 5th. It appears on the 7th degree of major keys and usually leads strongly to the next chord.

Look up any other chord with the Scale & Chord Finder.