The strong influence of heavy metal and progressive rock on the album helped to legitimize alternative rock to mainstream radio programmers and close the gap between alternative rock and the type of rock played on American 1970s Album Oriented Rock radio.
A forte influencia do heavy metal e o rock progresivo no disco axudou a lexitimizar o rock alternativo entre os programadores das emisoras destinadas ao gran público, e a pechar o oco entre o rock alternativo e o tipo de rock pinchado nas radios Album Oriented Rock estadounidenses dos 70.