Ernie Isley was supposedly taught by a guitar player in his big brothers' band. A shy guy from Seattle who went on, to go to England and form the Jimi Hendrix Experience. At least that's how Ernie has always told it.. He is definitely enamored by Jimi..
Friends used to do a cover of it and as I remember it was a Big Muff PI into the Small Stone. Definitely was a good set ender back in the late 70's