B♭ diminished chord
B♭dim
- B♭R
- D♭♭3
- F♭♭5
Barre · dim shape · 1st fret
What each note does
- B♭ is the root. It names the chord and is the note your ear hears as home.
- D♭ is the minor third, a half step below the major third (D). That one note is the whole difference between sad and happy.
- F♭ is the flat fifth. It pulls the chord tight and unstable, which is why diminished chords want to move somewhere.
More voicings
Triad · top 3 strings · 5th fret
Triad · middle strings · 2nd fret