|6||x or G||3rd fretfr.||optionalopt.|
Guitar chords in the key of C major:
Chord C6 notes: (G), C, E, A, C and E.
The note G on the sixth string is not required, but can be played on the 3rd fret if needed. The string 1 (E) is left open.
C major 6th guitar chord's alternative names: CM6, Cadd6, Cmaj6.
1(C), 3(E), 5(G), 6(A).