C♯7(add13) 8-string bass chord

How to play C♯7(add13) on 8-string bass

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

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

What notes are in C♯7(add13)?

C♯7(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.