guitar chord
Csus4
The third replaced by the fourth, which leans on the third it is standing in for.
Every fingering that fits a hand
x33011
moderate
x33013
moderate
x3301x
open
x33063
hard
x35063
hard
What is true of it
Csus4 is C, F and G — 1, 4 and 5 counted from C.
These are also the notes of Fsus2/C. Which name is right depends on what is underneath and what came before — the notes alone do not decide.
The easiest of the 5 fingerings below is x33011: 4 fingers, held at the 1st fret.
1 of them use open strings, which is what makes a shape quiet to change to.
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
Csus4/F
13301x
Csus4/G
3330xx
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.