The title of Willie Nelson’s solo debut on Blue Note Records, American Classic, refers as much to the man himself as to the storied Tin Pan Alley repertoire he explores on this elegant new set. While it’s common now for mature pop artists to attempt to put their own stamp on the American Songbook, Nelson practically invented the approach. He set the standard for, well, playing the standards more than thirty years ago with Stardust, perhaps this “outlaw” entertainer’s most daring move, an album that many industry pundits thought would get him laughed off the charts and out of the biz.