Extreme Metal
Extreme Metal is a catch all term alongside traditional metal, pop metal and dark metal, each reflecting part of the collective worldwide metal movement. The term is used to reference bands within the heavy metal music sub-genres that use 'extreme' elements in their music, such as blast beats, very fast or very slow tempos, distorted vocals, and depressing or aggressive themes. death metal, black metal, thrash metal and doom metal are most often considered extreme metal...
