B♭7(add13) 8-string bass chord

How to play B♭7(add13) on 8-string bass

The most common way, the first shape above: your middle finger on the E string at the 6th fret, your index finger on the A string at the 5th fret, your ring finger on the D string at the 6th fret, your little finger on the G string at the 7th fret and your little finger on the C string at the 7th fret. Don’t play the F♯, B and F strings.

From the F♯ string x x 6 5 6 7 7 x (x: not played, 0: open)

What notes are in B♭7(add13)?

B♭7(add13), B♭ dominant seventh added thirteenth, is B♭, D, F, A♭ and G: the root (B♭), the major third (D), the perfect fifth (F), the minor seventh (A♭) and the thirteenth (G). Its formula is 1 3 5 ♭7 13.