Most of their '70s albums, particularly the first six released between 1974 and 1977 as well as 1982's Creatures of the Night, featured a hard rock or traditional heavy metal style.
他們70年代的大部分錄音室專輯，特別是1974年至1977年發行的前六張以及1982年的《暗夜生物》，都以硬式搖滾或傳統重金屬風格為特色。