Cm9 8-string bass chord

How to play Cm9 on 8-string bass

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

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

What notes are in Cm9?

Cm9, C minor ninth, is C, E♭, G, B♭ and D: the root (C), the minor third (E♭), the perfect fifth (G), the minor seventh (B♭) and the ninth (D). Its formula is 1 ♭3 5 ♭7 9.