From a house in East Nashville, Kathleen Edwards sings about how thankful she is for those early aughts when she was praised with awards, television appearances, touring to packed venues — even if the tour bus with the bed in back was "total crap." As she continues to sing "Glenfern," the opening track to her first album in eight years as well as this Tiny Desk (home) concert, she remembers her former husband and collaborator.