C9♭13 7-string bass chord

How to play C9♭13 on 7-string bass

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

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

What notes are in C9♭13?

C9♭13, C dominant ninth flat thirteen, is C, E, G, B♭, D and A♭: the root (C), the major third (E), the perfect fifth (G), the minor seventh (B♭), the ninth (D) and the flat thirteenth (A♭). Its formula is 1 3 5 ♭7 9 ♭13.