B♭13♯9 8-string guitar chord

How to play B♭13♯9 on 8-string guitar

The most common way, the first shape above: your middle finger on the F♯ string at the 4th fret, your index finger on the low B string at the 3rd fret, your ring finger on the low E string at the 4th fret and your little finger on the A string at the 4th fret. Let the D and G strings ring open. Don’t play the high B and high E strings.

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

What notes are in B♭13♯9?

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