guitar chord
C6
A major triad with a sixth added. The same four notes as a minor seventh chord a third below.
Every fingering that fits a hand
x35055
hard
x32210
hard · no 5
x32055
hard
x35250
hard
x32250
hard · no 5
What is true of it
C6 is C, E, G and A — 1, 3, 5 and 6 counted from C.
These are also the notes of Am7/C. Which name is right depends on what is underneath and what came before — the notes alone do not decide.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 5 fingerings below is x35055: 4 fingers, held at the 3rd fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
1 string stays silent.
Where its notes are on the neck
The brass dots are C, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
C6/E
002010
C6/G
302010
C6/A
x02010
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.