 At the completion of the tour, Dream Theater returned to the studio to finish the recording of their seventh album, "Train of Thought".In contrast to the extended songs of their previous album, the band aimed to write a more song-oriented album, inspired in part by covering the "Master of Puppets" and "Number of the Beast" albums on their previous concert tour.Although the album was a critical success, its more straightforward metal sound alienated many of the band's existing fans, who had been attracted by the band's roots in progressive rock.