I of course started with the cheaters G. Followed by D7 and of course C. I have learned a few since then. I never could make a good sounding F with my thumb on the E and A strings like I have seen some folks(ie Richie Havens)do. I did better with a bar F. Of course playing a classical with nylon strings makes a difference too.Johnne "goin where the weather suits my clothes"