Philadelphia is famous for a few things: a shitty bell, a fictional fighter, the worst sports fans on earth, heart-attack inducing cuisine . . . oh, and some of the best goddamn music produced in America. In Lesson 131 of the 101 Series, we get learnt on rock, pop, hip hop and soul from two dozen of Philly’s finest. You could say we’re Philly fanatics. But, don’t.