The guitar chords at GOSK.com are divided into two sections: basic chords and bar chords. The basic chords are chords that involve open strings. These chords are all positioned near the nut of the guitar. This is a good place to start if you are new to the instrument. The bar chords are chords that you can move to any position on the fretbord. These chords include everything from simple triads to more advanced extended chords.