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Guitar chord · Major 7b5

Bbmaj7b5 chord (Bb Major 7b5)

Major 7th with a lowered 5th: a rare chord with a tritone between the root and the ♭5.

Notes BbDFbA
Formula 1 3 ♭5 7
Shapes 3 on this page

Bbmaj7b5 chord shapes

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

6th String Root 6 7 7 7 x x
5th String Root x 1 2 2 3 x
4th String Root x x 8 9 10 10

Interactive chord diagram

Bbmaj7b5 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 Bbmaj7b5

These scales start on Bb and contain every note of the chord, so they fit when Bbmaj7b5 is the chord of the moment.

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Questions

What notes are in a Bbmaj7b5 chord?
Bbmaj7b5 is Bb, D, Fb, A: the 1, 3, ♭5, 7 of Bb.
How do you play Bbmaj7b5 on guitar?
6th String Root: 6 7 7 7 x x; 5th String Root: x 1 2 2 3 x; 4th String Root: x x 8 9 10 10 (low E to high E, x = don't play the string).
What scale goes with Bbmaj7b5?
Scales on Bb that contain every note of Bbmaj7b5: Bb Lydian, Bb Lydian Augmented, Bb Lydian #2, Bb Lydian Augmented #2, Bb Lydian #2 #6, Bb Leading Whole Tone.

Major 7b5 chords in every key

More Bb chords