Bdim7 chord on guitar

Bdim7 is the B diminished 7 chord. Its notes are B, D, F and A♭. Stacked minor thirds. Its symmetrical sound makes it useful as a passing chord.

How to play Bdim7

Root on A string

×EAD×GBe

x23x34

Numbers show frets from the low E string to the high e string; x means don't play that string.

What's in Bdim7

Formula
1 · ♭3 · ♭5 · ♭♭7
Also written
Bdim7, B°7
Chord type
Diminished 7

Bdim7 notes across the neck

open123456789101112FA♭BDBDFA♭DFA♭BDA♭BDFBDFA♭BFA♭BD

Every B, D, F and A♭ on the first 12 frets. The filled dots are the root, B. Build your own shape from any nearby group.

Related chords

Other B chords

Other diminished 7 chords

Open the chord libraryTranspose chords