Csus2 chordC sus2

String 6: not played
String 5: fret 3, finger 1 (index)
String 4: fret 5, finger 3 (ring)
String 3: fret 5, finger 4 (pinky)
String 2: fret 3, finger 1 (index)
String 1: fret 3, finger 1 (index)
Barre: lay your index finger flat across fret 3

Csus2 (C sus2) has an open, floating sound. Notes: C – D – G.

How to play Csus2

× muted string · ○ open string · numbers are fingers (1 index, 2 middle, 3 ring, 4 pinky)

💻 Learn it by playing in the app

The chord check listens and tells you which string is muted

Note	C	D	G
Interval	1 (root)	2	5 (perfect 5th)

Fret 3 · A shape

Fret 10 · D shape

For the barre, keep your index finger close to the fret and slightly rolled onto its bony side; thumb behind the neck, around the middle.
Pick each string on its own and listen for muted strings; a finger touching the next string is the usual cause.
Press, release, press again: if you can form Csus2 cleanly 20 times in a minute, you have it.