B♭add♭13 8-string guitar chord

How to play B♭add♭13 on 8-string guitar

The most common way, the first shape above: your index finger on the low E string at the 6th fret, your ring finger on the A string at the 8th fret, your little finger on the D string at the 8th fret, your middle finger on the G string at the 7th fret and your middle finger on the high B string at the 7th fret. Don’t play the F♯, low B and high E strings.

From the F♯ string x x 6 8 8 7 7 x (x: not played, 0: open)

What notes are in B♭add♭13?

B♭add♭13, B♭ major added flat thirteen, is B♭, D, F and G♭: the root (B♭), the major third (D), the perfect fifth (F) and the flat thirteenth (G♭). Its formula is 1 3 5 ♭13.