Bdim7 chord on guitar

The B diminished 7th chord, written Bdim7, has 4 notes: B D F G#.

Bdim7×○○312
x20101
Bdim77123141
789797

As tab, thick low E string first: x20101, 789797. Numbers in the dots are fingers: 1 index, 2 middle, 3 ring, 4 little, T thumb. × marks a muted string and ○ an open one.

NotesB D F G#
Formula1 b3 b5 6
IntervalsRoot, Minor 3rd, Tritone, Major 6th

About the Diminished 7th Chord

A diminished 7th chord stacks three minor thirds, a symmetric, tense chord that can resolve in four directions. More about the Diminished 7th Chord.

Diminished 7th Chord in other keys