G♭13♯9 7-string bass chord

How to play G♭13♯9 on 7-string bass

The most common way, the first shape above: your middle finger on the B string at the 7th fret, your index finger on the E string at the 6th fret, your ring finger on the A string at the 7th fret, your ring finger on the D string at the 7th fret and your little finger on the G string at the 8th fret. Don’t play the C and F strings.

From the B string 7 6 7 7 8 x x (x: not played, 0: open)

What notes are in G♭13♯9?

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