Cmaj9 8-string guitar chord

How to play Cmaj9 on 8-string guitar

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

From the F♯ string x x 0 3 0 0 0 0 (x: not played, 0: open)

What notes are in Cmaj9?

Cmaj9, C major ninth, is C, E, G, B and D: the root (C), the major third (E), the perfect fifth (G), the major seventh (B) and the ninth (D). Its formula is 1 3 5 7 9.