 It is a concept album set in a dystopian future society devoid of real music, centering on a conflict between a group of rebels and an oppressive empire.Two singles, "The Gift of Music" and "Moment of Betrayal" were released on December 3, 2015 and January 22, 2016, respectively.Throughout 2016, Dream Theater went on a tour titled The Astonishing Live to support the album.