C7(add11) 8-string bass chord

How to play C7(add11) on 8-string bass

The most common way, the first shape above: your ring finger on the A string at the 3rd fret, your index finger on the D string at the 2nd fret and your little finger on the G string at the 3rd fret. Let the C and F strings ring open. Don’t play the F♯, B and E strings.

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

What notes are in C7(add11)?

C7(add11), C dominant seventh added eleventh, is C, E, G, B♭ and F: the root (C), the major third (E), the perfect fifth (G), the minor seventh (B♭) and the eleventh (F). Its formula is 1 3 5 ♭7 11.