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B♭° Chord on Guitar

B♭° is the B♭ diminished chord — 3 notes (B♭, D♭, F♭) built from the formula 1 ♭3 ♭5. Below are playable shapes across the fretboard, the keys it belongs to and the scales to use when soloing over it.

Notes: B♭ · D♭ · F♭Formula: 1 · ♭3 · ♭5Hear it and see it on the fretboard ▸

B♭°: Chord shapes (open & barre)

  • B♭° – open position×R♭5R♭3♭5open position
  • B♭° – fret 1×R♭5R♭3×fret 1
  • B♭° – fret 55××R♭3♭5Rfret 5
  • B♭° – fret 88××R♭5R♭3fret 8
  • B♭° – fret 1313×R♭5R♭3×fret 13

B♭°: Triad voicings (3 strings)

  • B♭° – bass: R2R♭3♭5×××bass: R
  • B♭° – bass: R9×R♭3♭5××bass: R
  • B♭° – bass: R5××R♭3♭5×bass: R
  • B♭° – bass: R12×××R♭3♭5bass: R
  • B♭° – bass: ♭37♭3♭5R×××bass: ♭3
  • B♭° – bass: ♭3×♭3♭5R××bass: ♭3
  • B♭° – bass: ♭39××♭3♭5R×bass: ♭3
  • B♭° – bass: ♭35×××♭3♭5Rbass: ♭3
  • B♭° – bass: ♭511♭5R♭3×××bass: ♭5
  • B♭° – bass: ♭56×♭5R♭3××bass: ♭5
  • B♭° – bass: ♭5××♭5R♭3×bass: ♭5
  • B♭° – bass: ♭59×××♭5R♭3bass: ♭5

Keys that contain B♭°

Scales to play over B♭°

Ordered from the most common choice. All of them contain B♭, D♭, F♭.

Other B♭ chords

Triads

Sevenths

Sixths

Added

Extended

Diminished chords in other keys

FAQ

What notes are in the B♭° chord?
B♭° (B♭ diminished) contains B♭, D♭, F♭ — formula 1 ♭3 ♭5.
How do you play B♭° on guitar?
A common shape is x12320 (low E to high E, x = muted string, open position). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.
What scale goes with B♭°?
Good choices to solo over B♭°: B♭ Locrian, B♭ Diminished (whole-half), B♭ Blues.
What key is B♭° in?
B♭° is diatonic in B major (vii°), G♯ minor (ii°).