B7♭9 8-string bass chord

How to play B7♭9 on 8-string bass

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

From the F♯ string x 0 2 2 1 2 0 x (x: not played, 0: open)

What notes are in B7♭9?

B7♭9, B dominant seventh flat nine, is B, D♯, F♯, A and C: the root (B), the major third (D♯), the perfect fifth (F♯), the minor seventh (A) and the flat ninth (C). Its formula is 1 3 5 ♭7 ♭9.