B7♯9 7-string bass chord

How to play B7♯9 on 7-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, your little finger on the G string at the 2nd fret and your little finger on the C string at the 2nd fret. Let the B string ring open. Don’t play the F string.

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

What notes are in B7♯9?

B7♯9, B dominant seventh sharp 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 sharp ninth (C♯♯). Its formula is 1 3 5 ♭7 ♯9.