This chord has 4 voicings across the fretboard. Use the arrows to see each shape and fingering — and tap any dot on the diagram to hear that note.
Bdim Guitar Chord
A diminished chord. Bdim has eerie quality.
Also known as
- B°
- B °
- B dim
- Bdiminished
- B diminished
How to Play This Chord
Position your fingers on the fretboard as shown in the diagram. The vertical lines represent the strings, from low E (left) to high E (right), and the horizontal lines are the frets. Numbers inside the dots indicate which finger to use: 1 (index), 2 (middle), 3 (ring), 4 (pinky). An X means don't play that string; an O means play it open. A bar spanning multiple strings means one finger presses across all of them at once — this is known as a barre chord.
Tips & Tricks
B diminished is the vii° chord in C major — arguably the most important key in music theory. Despite this, it's rarely played as a standalone chord on guitar. Use the movable shape at the 2nd fret on the A string. It resolves naturally up to C major.