C9 8-string guitar chord

How to play C9 on 8-string guitar

The most common way, the first shape above: your middle finger on the A string at the 3rd fret, your index finger on the D string at the 2nd fret, your ring finger on the G string at the 3rd fret, your ring finger on the high B string at the 3rd fret and your ring finger on the high E string at the 3rd fret. Don’t play the F♯, low B and low E strings.

From the F♯ string x x x 3 2 3 3 3 (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.