B♭m(maj7) 7-string bass chord

How to play B♭m(maj7) on 7-string bass

The most common way, the first shape above: your index finger on the A string at the 1st fret, your ring finger on the G string at the 2nd fret and your middle finger on the C string at the 1st fret. Let the F string ring open. Don’t play the B, E and D strings.

From the B string x x 1 x 2 1 0 (x: not played, 0: open)

What notes are in B♭m(maj7)?

B♭m(maj7), B♭ minor major seventh, is B♭, D♭, F and A: the root (B♭), the minor third (D♭), the perfect fifth (F) and the major seventh (A). Its formula is 1 ♭3 5 7.