Extreme metal--one step beyond heavy metal--can appear bizarre or terrifying to the uninitiated. Extreme metal musicians have developed an often impenetrable sound that teeters on the edge of screaming, incomprehensible noise. Extreme metal circulates on the edge of mainstream culture within the confines of an obscure 'scene', in which members explore dangerous themes such as death, war and the occult, sometimes embracing violence, neo-fascism and...