Heavy metal music
Critics disagree over who can be thought of as the first heavy metal band. Most credit either Led Zeppelin or Black Sabbath, with American commentators tending to favour Led Zeppelin and British commentators tending to favour Black Sabbath, though many give equal credit to both. A few commentators—mainly American—argue for other groups including Iron Butterfly, Steppenwolf or Blue Cheer. Deep Purple, the third band in what is sometimes considered the "unholy trinity" of heavy metal (Black Sabbath, Led Zeppelin, and Deep Purple), despite being slightly older than Black Sabbath and Led Zeppelin, fluctuated between many rock styles until late 1969 when they took a heavy metal direction.
Metal Forces
Metal Forces is a British publication founded in 1983 which promotes the music genres heavy metal and hard rock. "Metal Forces" was well known for its coverage of unsigned bands through its "Demolition" feature and championed the likes of Metallica, Slayer, Megadeth, HellsBelles, Overkill, Death and Poison long before they had secured record deals. They are credited as contributing in this fashion to the success of the band Anacrusis. Dave Reynolds, a former writer for "Metal Forces", has claimed that the magazine was the first to coin the terms thrash metal and death metal. A "Metal Forces" compiled vinyl album, "Demolition - Scream Your Brains Out!", based on the magazine's popular "Demolition" column, was released in 1988 through Chain Reaction Records featuring Anacrusis, Atrophy, Hobbs' Angel of Death, Aftermath and the Chris Barnes fronted Leviathan. In addition to metal acts, the magazine also featured interviews with alternative rock acts such as Nirvana.