OK, it seems to me that there is one position for modes if you start with Ionian(c major) obviously all natural notes. If you move to Dorian(d major) all natural notes. If you keep moving from mode to mdoe keeping in natural there is only one position.So does this mean there is only one position to learn, you just have to know what key your in?If so, whats a good way to know what key your in for which mode? Most scales start on the root note, but Ionian for example, can start on the open E-string. Thanks again for any help.