Note where on the guitar neck the capo is clamped. If it’s at the first marker (between the 2nd and 3rd fret) the chord structure is raised one whole note, i.e., from C to D. If it’s at the second marker, it’s been raised two whole notes, from C to D to E. So whatever ‘open’ chords the guitar player is using from the capo position, they are the same as would be used from the normal neck but raised one or two (or more) notes, depending on position.
