A13♭9 6-string bass chord

How to play A13♭9 on 6-string bass

The most common way, the first shape above: lay your index finger flat across the six strings at the 10th fret, your little finger on the E string at the 12th fret, your middle finger on the D string at the 11th fret and your ring finger on the G string at the 11th fret.

From the B string 10 12 10 11 11 10 (x: not played, 0: open)

What notes are in A13♭9?

A13♭9, A thirteenth flat nine, is A, C♯, E, G, B♭ and F♯: the root (A), the major third (C♯), the perfect fifth (E), the minor seventh (G), the flat ninth (B♭) and the thirteenth (F♯). Its formula is 1 3 5 ♭7 ♭9 13.