Last time we looked at Carulli's neat exercise in fifth position. Here is his concept of sixth position
As I stated last time, many good players think of the fifth position (fifth fret) as a clean and neat place to play in the keys of A and D major and minor. This is not bad thinking. Carulli gives us F Major in fifth position! It works, it is logical, it is a useful tool to know.
Much the same, when Carulli takes it up a notch to the sixth fret, he winds up NOT in B flat and E flat, but in F sharp! -- like you didn't see that coming.
But wait, there is more to come....