C7♭9♭13 8-string guitar chord

How to play C7♭9♭13 on 8-string guitar

The most common way, the first shape above: lay your index finger flat across the four strings from the D to the high E at the 6th fret, your ring finger on the low E string at the 8th fret, your middle finger on the A string at the 7th fret and your little finger on the high B string at the 8th fret. Don’t play the F♯ and low B strings.

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

What notes are in C7♭9♭13?

C7♭9♭13, C dominant seventh flat nine flat thirteen, is C, E, G, B♭, D♭ and A♭: the root (C), the major third (E), the perfect fifth (G), the minor seventh (B♭), the flat ninth (D♭) and the flat thirteenth (A♭). Its formula is 1 3 5 ♭7 ♭9 ♭13.