Heavy metal, or heavy metal in French, is a musical genre derived from rock that appeared in the United Kingdom and the United States in the late 1960s. However, the term "heavy metal" is confusing because it can have many different meanings depending on the context in which it is used. In its original context, it was used interchangeably as a synonym for hard rock. In a second sense, the term refers to traditional heavy metal, a more radical aesthetic trend that, during the 1970s and 1980s, broke away from hard rock, moving away from its blues roots4, although this distinction is disputed by recent research. In a broad and generalized sense, heavy metal or metal (in a nutshell) refers to all music that comes from traditional heavy metal and hard rock.
In this article, the term heavy metal is used in its broadest sense. In this sense, it is also commonly called metal. Heavy metal draws its inspiration, between 1969 and 1974, from bands such as Black Sabbath, Deep Purple and Led Zeppelin, which, by combining blues and rock, as well as various more subtly distilled influences (classical tradition, oriental music...) have created a hybrid with heavy and thick sounds, centered on the impulses of the drums and the guitar with its highly amplified distortion. Over the years, heavy metal has given rise to various subgenres. The genre became popular in the 1970s and 1980s, as its subgenres appeared, and it still generates a strong enthusiasm from its fans around the world in the 2000s.