Bob Dylan once said that, upon hearing Woody Guthrie’s songs, “it was like I had been in the dark and someone had turned on the main switch of a lightning conductor.”  Steve Earle opined that “Woody is my hero of heroes and the only person on earth that I will go to my grave regretting that I never met.”  No less a literary eminence than John Steinbeck noted, “Woody is just Woody,” before explaining, “Harsh voiced and nasal, his guitar hanging like a tire iron on a rusty rim, there is nothing…