B♭dim(maj7) bass chord

How to play B♭dim(maj7) on bass

The most common way, the first shape above: lay your index finger flat across the four strings at the 6th fret, your ring finger on the A string at the 7th fret and your little finger on the D string at the 7th fret.

From the E string 6 7 7 6 (x: not played, 0: open)

What notes are in B♭dim(maj7)?

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