Tony Glover, in the estimation of at least one esteemed critic, was one of the best harmonica players in all Minneapolis, where an impressive folk music scene had emerged by the 1960s. “I couldn’t play like Glover or anything and I didn’t try to. I played mostly like Woody Guthrie and that was about it,” wrote fellow Minnesotan Bob Dylan in Chronicles: Volume 1, his 2004 memoir. “Glover’s playing was well known and talked about around town, but nobody commented on mine.” It wasn’t long, of course, before Dylan skipped…