C7(add13) 7-string guitar chord

How to play C7(add13) on 7-string guitar

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

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

What notes are in C7(add13)?

C7(add13), C dominant seventh added thirteenth, is C, E, G, B♭ and A: the root (C), the major third (E), the perfect fifth (G), the minor seventh (B♭) and the thirteenth (A). Its formula is 1 3 5 ♭7 13.