I subscribe to the Curmudgeon school of Woddafug and Woddevah here. I guess if you needed a standard key for palying with others who had learned something in that key only. But to my mind, ya could play any song in any key and if it comes out different, well, that's folk music. I am interested to hear the explanatrion too, as I am just as dumb as the two noteworthy characters up there...

Spaw, is the key of R the one where there are no notes left? LOL

A