Like open chords, there are several different trpes of bar chords, including major, minor and 7th chords. The bar chord shape shown above is referred to as a root 6 major bar chord. The term "root 6" means that the root note (name note) of the chord is on the 6th string. The Root Six Major bar chord can be played at any fret though the name of the chord will depend on which note the first finger is fretting on the sixth string. E.g. at the 3rd fret, this shape would be a G chord. At the 5th fret, it would be an A chord, etc.