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Guitar chord
B♭m7♭5 Chord
B♭m7♭5 is a half-diminished chord rooted on B♭. A minor 7th with the fifth flattened too. Dark and unresolved — most often the ii chord in a minor key.
The notes
Every B♭m7♭5 chord anywhere on the neck is some arrangement of these 4 notes.
B♭1
D♭♭3
F♭♭5
A♭♭7
How to play it
2 shapes, low on the neck to high. Tap any diagram to hear it. Green marks the root.