x 2 3 1 3 x
B dim7
B diminished seventh (dim7)
Notes: B · D · F · Ab
It is a symmetrical chord: its four notes are three semitones apart, so the same shape repeats every 3 frets and works for four chords (same notes, a different root): B dim7, D dim7, F dim7 and G# dim7.
Triads
Suspended
Sevenths
Extensions
Drag the file into your recording program (DAW). It plays the guitar's real notes.
Common shapes (3)
7 x 6 7 6 x
x x 9 10 9 10
Other shapes (19)
Showing 12 of 19
x 2 0 1 0 1
x 2 0 1 3 1
7 8 6 7 0 x
7 8 0 7 9 x
x 2 3 x 3 4
7 8 0 10 9 x
7 x 0 4 6 4
7 5 0 x 6 4
7 x 0 7 6 4
x 2 3 1 3 1
7 8 0 x 9 7
7 5 6 x 6 x
About B dim7
B dim7 is built from four notes: B (root), D (minor third), F (diminished fifth) and Ab (diminished seventh). In scale degrees above the root, the formula is 1 – b3 – b5 – bb7. It is a diminished seventh chord: it stacks three minor thirds, sounds very tense and unstable and wants to resolve, typical of jazz and classical music.
On guitar, B dim7 has 3 common shapes: the A, E and D shapes. These are CAGED system shapes, the basis for playing the same chord anywhere on the neck. There are 19 more voicings sorted by difficulty; use the viewer switches to add inversions and stretches.