Guitarist John Marcel Williams is appearing soon on the Pittsburgh Concert Society YouTube Channel for the 78th season. Now at Curtis Institute, John grew up in Steubenville, Ohio. He's worked with Sharon Isbin at Aspen, with Manuel Barrueco, at Peabody and Oberlin, plus he appeared with the Wheeling Symphony in the Elmer Bernstein Concerto. Now he works with Jason Vieaux and David Starobin in Philadelphia. John offers tips on the best cheesesteaks in Philadelphia and tells us about his guitars and strings. He's a fan of Jimi Hendrix but it was the Romeros and Julian Bream who got his fingers moving at the library.