Fig. 1 · Bbm(maj7) on the keyboard

piano chord

B♭m(maj7)

B♭1D♭♭3F5A7

Minor triad, major seventh — the tonic chord of harmonic minor.

Written the other way round it is A♯m(maj7) — the same twelve keys on a piano, a different piece of notation.

on guitar on ukulele the scale

What is true of it

B♭m(maj7) is B♭, D♭, F and A — 1, b3, 5 and 7 counted from B♭.

On an instrument that cannot reach all 4, the 5 goes first, in that order.

B♭ in other shapes

B♭7dominant seventh B♭maj7major seventh B♭m7minor seventh B♭major B♭mminor B♭dimdiminished

Cm(maj7)C♯m(maj7)D♭m(maj7)Dm(maj7)D♯m(maj7)E♭m(maj7)Em(maj7)Fm(maj7)all 374