B♭9♭13 8-string bass chord

How to play B♭9♭13 on 8-string bass

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

From the F♯ string x x x 1 0 1 0 1 (x: not played, 0: open)

What notes are in B♭9♭13?

B♭9♭13, B♭ dominant ninth flat thirteen, is B♭, D, F, A♭, C and G♭: the root (B♭), the major third (D), the perfect fifth (F), the minor seventh (A♭), the ninth (C) and the flat thirteenth (G♭). Its formula is 1 3 5 ♭7 9 ♭13.