The New Wave of British Heavy Metal (frequently abbreviated as NWOBHM or N.W.O.B.H.M.) emerged in the late
1970s and reached mainstream attention in the early
1980s, in the
United Kingdom, as a reaction in part to the decline of early
heavy metal bands such as
Led Zeppelin,
Deep Purple and
Black Sabbath. The NWOBHM toned down the
blues influences of earlier acts, upped the tempo, and adopted a tougher sound, taking a more hardcore approach to its music. It didn't have any intention to win a wide audience — it was directed almost exclusively at metal fans. It is widely considered to be the main foundation of all modern-day metal along with thrash acts such as
Metallica, which cited bands like Diamond Head as influence.
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