B♭dim(maj7) 8-string guitar chord

How to play B♭dim(maj7) on 8-string guitar

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

From the F♯ string x x x 1 2 2 2 0 (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.