It was in the late 40s or early 50s - Grandpa Jones on WSM on our radio. I think he was doing "Gimme that old time religion. . ." but man it made us tap our toes!! I have never - to this day - figured out how to Frail. But then again I'm a guitar picker. With the exception of the classical items named above, and that is my failing not the musics, all of them have touched me. After those it was "Old Yeller" Tears on my Pillow" "Ballad of Davy Crockett" Bob Wills, Roy Rogers, Sons of the Pioneers, Patsy Montana, Patsy Cline, geez where does one stop??