 This album was to fully cement B'z evolution from synthesizer-driven pop to mainstream rock.The experimentation is also of note, as it follows the familiar pattern of excess that so frequently comes with most double albums in the rock and roll genre, most notably Fleetwood Mac's "Tusk", although nowhere nearly as wild or juxtaposed as Lindsay Buckingham's studio work on said album.The First disc contains a more rock style that B'z built their career on.