There are rock stars. There are cult heroes. And then there’s Willie Nile — the musical equivalent of that rookie ballplayer you saw in Double-A and immediately told your friends, “Trust me, this guy’s gonna be special,” only to spend the next 40 years alternating between feeling brilliantly vindicated and mildly annoyed the rest of the world took so long to catch up. Back in my WNYT college radio days when I was juggling DJ and sports talk radio shifts before either one pai