Sufjan Stevens once had a plan so ambitious, so preposterous, that it seemed like one of those ‘just crazy enough to work’ things – write a concept album about each of the 50 states. He started off with the midwest when he released the lush “Michigan” in 2003, before carrying on with the magnificent 2005 “Illinois”, which, among other gems in the tracklist, features “Chicago”, Sufjan’s best song to date by far! Something happen afterwards,…