C9 5-string bass chord

How to play C9 on 5-string bass

The most common way, the first shape above: your index finger on the B string at the 1st fret and your middle finger on the A string at the 1st fret. Let the E, D and G strings ring open.

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

What notes are in C9?

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

Can I play C7 instead of C9?

Yes. C9 is C7 with D added; on guitar the root or fifth is often left out to make room for it.

What is the difference between C9 and Cadd9?

C9 has the minor seventh, B♭, under the ninth; Cadd9 has the ninth with no seventh.