A7♭9♯9 7-string bass chord

How to play A7♭9♯9 on 7-string bass

The most common way, the first shape above: lay your index finger flat across the four strings from the A to the C at the 4th fret, your middle finger on the E string at the 5th fret, your ring finger on the D string at the 5th fret, your ring finger on the G string at the 5th fret and your little finger on the F string at the 5th fret. Don’t play the B string.

From the B string x 5 4 5 5 4 5 (x: not played, 0: open)

What notes are in A7♭9♯9?

A7♭9♯9, A dominant seventh flat nine sharp nine, is A, C♯, E, G, B♭ and B♯: the root (A), the major third (C♯), the perfect fifth (E), the minor seventh (G), the flat ninth (B♭) and the sharp ninth (B♯). Its formula is 1 3 5 ♭7 ♭9 ♯9.