Bb Diminished Chord

Symbol: Bbdim

Diagrams

Staff Notation

Staff Notation

Piano Keyboard

Bbdim chord – keys Bb, Db, Fb highlightedPiano keyboard with keys Bb, Db, Fb highlighted. Bb is the root note.FbDbBb
Bbdim chord – keys Bb, Db, Fb highlightedPiano keyboard with keys Bb, Db, Fb highlighted. Bb is the root note.FbDbBb

Guitar

Guitar chord diagram for Bbdim (1fr)Guitar chord voicing with notes Bb, Fb, Bb, Db.Bbdim (1fr)234

Intervals

NoteIntervalSemitones
BbP10
Dbm33
Fbd56

About the Bb Diminished Chord

The Bb Diminished chord is built from the notes Bb, Db, Fb. These notes are derived by stacking intervals above the root note Bb, following the interval pattern that defines every Diminished chord. Understanding how a chord is constructed from intervals is one of the most valuable skills in music theory, because it allows you to build the chord in any key and recognize it in any context.

You can use this chord in a variety of musical contexts. Try exploring the scales that contain these notes to discover which keys this chord naturally belongs to. Each scale listed above shares all the notes of this chord, making it a diatonic chord within that key. Understanding these relationships helps with songwriting, improvisation, and arranging.

Try Bbdim in the Chord Identifier →