Eric Church’s most recent set, Mr. Misunderstood (EM Nashville) appeared online—and on the doorsteps of his fan club—without any advance word. It's had a huge impact, not only in the marketplace but among critics and tastemakers, and already earned Church an array of laurels, including an ACM Award for Video of the Year, and CMA noms for Male Vocalist, Album, Video, Song and Single, not to mention considerable Grammy buzz. But after enduring a conversation with us…