"Quite simply, metal music would not exist if it wasn’t for the Birmingham legends, Black Sabbath. After taking blues and early rock music to darker and more aggressive sonic territory, Black Sabbath invented heavy metal music with their pioneering and master-crafted albums throughout the 1970s. [...] the band’s first six albums are some of most influential records in all of metal and they’ve single handedly paved the path for every band and sub-genre under the metal umbrella."