Metal (or heavy metal) is a form of rock music. It originated in the late 1960s and early 1970s mostly in england and the united states. Although its roots originate from blues music and psychedelic rock, heavy metal developed a much more heavier, louder and distorted sound with an emphasis on extended guitar solos and more upfront drum beats. Heavy metal lyrics and the presentation of the music are of a much more aggressive nature than that of other forms of rock music.