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Guitar chord · Diminished Major 7th

Bdim(maj7) chord (B Diminished Major 7th)

Diminished triad with a major 7th: tense and rare, built on a minor 3rd, a lowered 5th and a major 7th.

Notes BDFA#
Formula 1 ♭3 ♭5 7
Shapes 3 on this page

Bdim(maj7) 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.

6th String Root 7 8 8 7 x x
5th String Root x 2 3 3 3 x
4th String Root x x 9 10 11 10

Interactive chord diagram

Bdim(maj7) 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 Bdim(maj7)

These scales start on B and contain every note of the chord, so they fit when Bdim(maj7) is the chord of the moment.

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Questions

What notes are in a Bdim(maj7) chord?
Bdim(maj7) is B, D, F, A#: the 1, ♭3, ♭5, 7 of B.
How do you play Bdim(maj7) on guitar?
6th String Root: 7 8 8 7 x x; 5th String Root: x 2 3 3 3 x; 4th String Root: x x 9 10 11 10 (low E to high E, x = don't play the string).
What scale goes with Bdim(maj7)?
Scales on B that contain every note of Bdim(maj7): B Whole-Half Diminished, B Hungarian Minor, B Lydian #2, B Lydian b3, B Lydian Augmented #2, B Lydian #2 #6.

Diminished Major 7th chords in every key

More B chords