Regardless of chord shape, a C chord is a C chord. Besides on the the link you're referencing, the chords are listed above the the lyrics, not the chord shape, which I assume you're referring to in the 2 links you provided. Das da way I read it. Chordie is the only site that I know of that allows you to select different tunings. Located on the right hand column, the 2nd drop down box (TUNINGS), you can select Ukulele C tuning. Tablature on the other hand is totally different story. Not an issue . . . just trying to clarify. K'den.