A♭7♯9♭5 7-string bass chord

How to play A♭7♯9♭5 on 7-string bass

The most common way, the first shape above: your ring finger on the A string at the 11th fret, your middle finger on the D string at the 10th fret, your little finger on the G string at the 11th fret, your little finger on the C string at the 11th fret and your index finger on the F string at the 9th fret. Don’t play the B and E strings.

From the B string x x 11 10 11 11 9 (x: not played, 0: open)

What notes are in A♭7♯9♭5?

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