B♭m is B♭, D♭ and F — the 1, ♭3 and 5 of B♭. The five CAGED shapes above are the open-chord forms moved up the neck, in the order they appear; ‹ › walk them. Root, minor 3rd, perfect 5th — the darker counterpart to major About the minor triad →
Also written Bb min triad, Bb minor chord, Bb min chord, Bbminor and Bbmin.