How far would you walk to see a concert? Probably not as far as Hilde Binford, a music history professor at a Pennsylvania college, who just completed a 33-mile trek with several of her students, ending at New York’s Lincoln Center, just in time for a performance of the Philharmonic. Why they did such a thing is a complicated question: suffice to say that it has to do with J.S. Bach’s own 250-mile pilgrimage to hear an organ recital, but also a lot to do with simple intellectual curiosity and the love of a challenge.