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B♭m7♭5 Chord on Guitar

B♭m7♭5 is the B♭ half-diminished (ø) chord — 4 notes (B♭, D♭, F♭, A♭) built from the formula 1 ♭3 ♭5 ♭7. 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♭ · A♭Formula: 1 · ♭3 · ♭5 · ♭7Hear it and see it on the fretboard ▸

B♭m7♭5: Chord shapes (open & barre)

  • B♭m7♭5 – open position×R♭5♭7♭3♭5open position
  • B♭m7♭5 – fret 1×R♭5♭7♭3♭7fret 1
  • B♭m7♭5 – fret 66R♭5♭7♭3♭7Rfret 6
  • B♭m7♭5 – fret 88××R♭5♭7♭3fret 8
  • B♭m7♭5 – fret 1111×R♭3♭7R♭5fret 11
  • B♭m7♭5 – fret 1313×R♭5♭7♭3×fret 13

B♭m7♭5: Drop 2 voicings

  • B♭m7♭5 – bass: ♭511♭5R♭3♭7××bass: ♭5
  • B♭m7♭5 – bass: ♭56×♭5R♭3♭7×bass: ♭5
  • B♭m7♭5 – bass: ♭5××♭5R♭3♭7bass: ♭5
  • B♭m7♭5 – bass: ♭7♭7♭3♭5R××bass: ♭7
  • B♭m7♭5 – bass: ♭79×♭7♭3♭5R×bass: ♭7
  • B♭m7♭5 – bass: ♭75××♭7♭3♭5Rbass: ♭7
  • B♭m7♭5 – bass: R6R♭5♭7♭3××bass: R
  • B♭m7♭5 – bass: R×R♭5♭7♭3×bass: R
  • B♭m7♭5 – bass: R8××R♭5♭7♭3bass: R
  • B♭m7♭5 – bass: ♭38♭3♭7R♭5××bass: ♭3
  • B♭m7♭5 – bass: ♭33×♭3♭7R♭5×bass: ♭3
  • B♭m7♭5 – bass: ♭311××♭3♭7R♭5bass: ♭3

B♭m7♭5: Drop 3 voicings

  • B♭m7♭5 – bass: ♭38♭3×R♭5♭7×bass: ♭3
  • B♭m7♭5 – bass: ♭3×♭3×R♭5♭7bass: ♭3
  • B♭m7♭5 – bass: ♭511♭5×♭3♭7R×bass: ♭5
  • B♭m7♭5 – bass: ♭56×♭5×♭3♭7Rbass: ♭5
  • B♭m7♭5 – bass: ♭7♭7×♭5R♭3×bass: ♭7
  • B♭m7♭5 – bass: ♭79×♭7×♭5R♭3bass: ♭7
  • B♭m7♭5 – bass: R5R×♭7♭3♭5×bass: R
  • B♭m7♭5 – bass: R12×R×♭7♭3♭5bass: R

B♭m7♭5: Shell voicings (jazz)

  • B♭m7♭5 – R-3-74R♭3♭7×××R-3-7
  • B♭m7♭5 – R-3-711×R♭3♭7××R-3-7
  • B♭m7♭5 – R-7-36R×♭7♭3××R-7-3
  • B♭m7♭5 – R-7-3×R×♭7♭3×R-7-3

Keys that contain B♭m7♭5

Scales to play over B♭m7♭5

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

Other B♭ chords

Triads

Sevenths

Sixths

Added

Extended

Half-diminished (ø) chords in other keys

FAQ

What notes are in the B♭m7♭5 chord?
B♭m7♭5 (B♭ half-diminished (ø)) contains B♭, D♭, F♭, A♭ — formula 1 ♭3 ♭5 ♭7.
How do you play B♭m7♭5 on guitar?
A common shape is x12120 (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♭m7♭5?
Good choices to solo over B♭m7♭5: B♭ Locrian, B♭ Locrian ♮2, B♭ Blues.
What key is B♭m7♭5 in?
B♭m7♭5 is diatonic in B major (viiø7), G♯ minor (iiø7).