B♭7♯9♭5 7-string guitar chord

How to play B♭7♯9♭5 on 7-string guitar

The most common way, the first shape above: your index finger on the A string at the 1st fret, your middle finger on the G string at the 1st fret and your ring finger on the high B string at the 2nd fret. Let the D and high E strings ring open. Don’t play the low B and low E strings.

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

What notes are in B♭7♯9♭5?

B♭7♯9♭5, B♭ dominant seventh sharp nine flat five, is B♭, D, F♭, A♭ and C♯: the root (B♭), the major third (D), the diminished fifth (F♭), the minor seventh (A♭) and the sharp ninth (C♯). Its formula is 1 3 ♭5 ♭7 ♯9.