Extreme metal is a loosely definit umbrella term for a nummer o relatit hivy metal subgenres that hae developit syne the early 1980s. The term uisually refers tae a mair abrasive, hairsker, unnergrund, non-commercializit style or soond nearly aaways associatit wi genres lik black metal, daith metal, doom metal, thrash metal an whiles speed metal, an groove metal.[1]
Tho no vera weel kent tae mainstream muisic fans, as it is bi definition coontercultur, extreme metal haes influencit an array o muisical performers inside an ootside o hivy metal.