A13 8-string bass chord

How to play A13 on 8-string bass

The most common way, the first shape above: your index finger on the F♯ string at the 3rd fret, your middle finger on the E string at the 3rd fret, your ring finger on the A string at the 4th fret, your ring finger on the D string at the 4th fret, your ring finger on the G string at the 4th fret and your ring finger on the C string at the 4th fret. Don’t play the B and F strings.

From the F♯ string 3 x 3 4 4 4 4 x (x: not played, 0: open)

What notes are in A13?

A13, A dominant thirteenth, is A, C♯, E, G, B and F♯: the root (A), the major third (C♯), the perfect fifth (E), the minor seventh (G), the ninth (B) and the thirteenth (F♯). Its formula is 1 3 5 ♭7 9 13.