A7♭13 7-string bass chord

How to play A7♭13 on 7-string bass

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

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

What notes are in A7♭13?

A7♭13, A dominant seventh flat thirteen, is A, C♯, E, G and F: the root (A), the major third (C♯), the perfect fifth (E), the minor seventh (G) and the flat thirteenth (F). Its formula is 1 3 5 ♭7 ♭13.