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Guitar chord · Diminished 7th

Bdim7 chord (B Diminished 7th)

Symmetrical diminished chord for cinematic tension and neoclassical transitions.

Notes BDFAb
Formula 1 ♭3 ♭5 𝄫7
Shapes 1 on this page

Bdim7 chord shapes

Tap a diagram to strum it. Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. Blue dots are the root, B.

Symmetrical Dim7 Voicing x 2 3 1 3 x

Interactive chord diagram

Bdim7 on the fretboard

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E ✕ ✕

Tap any note to hear it.

Scales to play over Bdim7

These scales start on B and contain every note of the chord, so they fit when Bdim7 is the chord of the moment.

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Questions

What notes are in a Bdim7 chord?
Bdim7 is B, D, F, Ab: the 1, ♭3, ♭5, 𝄫7 of B.
How do you play Bdim7 on guitar?
Symmetrical Dim7 Voicing: x 2 3 1 3 x (low E to high E, x = don't play the string).
What scale goes with Bdim7?
Scales on B that contain every note of Bdim7: B Half-Whole Diminished, B Whole-Half Diminished, B Locrian Natural 6, B Ukrainian Dorian, B Lydian #2, B Ultralocrian.

Diminished 7th chords in every key

More B chords