Woolworth's? I thought that they went out of business a while back--too bad, because I loved the lunch counter--My contribution, having actually taught blues guitar to doxens of satisfied people of all ages, is to remember that if you learn to play one Blues song, all the rest of it will fall in--get someone to show you (don't fool with the tapes, or books at first) how to play "Bright Lights, Big City" or "Kansas City" then play it to death---