A♭13♯9 8-string bass chord

How to play A♭13♯9 on 8-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 3rd fret, your middle finger on the E string at the 4th fret, your ring finger on the D string at the 4th fret and your little finger on the G string at the 4th fret. Let the F string ring open. Don’t play the F♯ and B strings.

From the F♯ string x x 4 3 4 4 3 0 (x: not played, 0: open)

What notes are in A♭13♯9?

A♭13♯9, A♭ thirteenth sharp 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 sharp ninth (B) and the thirteenth (F). Its formula is 1 3 5 ♭7 ♯9 13.