Cadd♭13 8-string guitar chord

How to play Cadd♭13 on 8-string guitar

The most common way, the first shape above: lay your index finger flat across the two strings from the G to the high B at the 1st fret, your ring finger on the A string at the 3rd fret, your middle finger on the D string at the 2nd fret and your little finger on the high E string at the 3rd fret. Don’t play the F♯, low B and low E strings.

From the F♯ string x x x 3 2 1 1 3 (x: not played, 0: open)

What notes are in Cadd♭13?

Cadd♭13, C major added flat thirteen, is C, E, G and A♭: the root (C), the major third (E), the perfect fifth (G) and the flat thirteenth (A♭). Its formula is 1 3 5 ♭13.