Extreme metal in the context of "Screaming (music)"

Boston hardcore is the hardcore punk scene of Boston, Massachusetts. Beginning in the early 1980s, bands such as SSD, DYS, Jerry's Kids and Negative FX formed a nascent hardcore scene in the city that was notably captured on the compilation This Is Boston, Not L.A. (1982). By 1986, many of these bands had either disbanded or departed from the hardcore genre, instead beginning to play heavy metal. During the 1990s, the influence of extreme metal became prominent in the scene with Overcast, Converge, Cave In and Shadows Fall becoming prominent figures in the metalcore genre. However, a reaction against this metal influence quickly took place, which led to the mid-1990s youth crew revival of In My Eyes, Bane and Ten Yard Fight. By 2000, the youth crew revival had declined, and in response to its lyrical positivity, bands including American Nightmare, the Suicide File and the Hope Conspiracy began making music influenced by its music but centred on darker and nihilistic lyrics. In the following years, a reaction also took place against this lyrical style, which led to the rise of positive hardcore bands Mental and Have Heart. The 2000s also saw mainstream successful of Boston melodic metalcore bands including Killswitch Engage, All That Remains and Shadows Fall.

Thrash metal (or simply thrash) is an extreme subgenre of heavy metal music characterized by its overall aggression and fast tempo. The songs usually use fast percussive beats and low-register guitar riffs, overlaid with shredding-style lead guitar work.

The genre emerged in the early 1980s as musicians began fusing the double bass drumming and complex guitar stylings of the new wave of British heavy metal (NWOBHM) with the speed and aggression of hardcore punk and speed metal and the technicality of progressive rock. Philosophically, thrash metal developed as a backlash against both the conservatism of the Reagan era and the much more moderate, pop-influenced, and widely accessible heavy metal subgenre of glam metal which also developed concurrently in the 1980s. Derived genres include crossover thrash, a fusion of thrash metal and hardcore punk.

Mark Andrew "Barney" Greenway (born 13 July 1969) is a British extreme metal vocalist who is the lead singer and primary lyricist of Napalm Death and a former member of Extreme Noise Terror and Benediction.

Greenway has stated his nickname "Barney" came from a time when he used to drink alcohol. He stated he would get so drunk that when he went anywhere, he would bump into everything. From this behaviour, his friend Stick (drummer of Doom) would call him "Rubble", which changed to "Barney Rubble" and then just "Barney".

Grindcore is an extreme fusion genre of heavy metal and hardcore punk that originated in the mid-1980s, drawing inspiration from abrasive-sounding musical styles, such as thrashcore, crust punk, hardcore punk, extreme metal, and industrial. Grindcore is considered a more noise-filled style of hardcore punk while using hardcore's trademark characteristics such as heavily distorted, down-tuned guitars, grinding overdriven bass, high-speed tempo, blast beats, and vocals which consist of growls, shouts and high-pitched shrieks. Early groups such as England's Napalm Death are credited with laying the groundwork for the style. It is most prevalent today in North America and Europe, with popular contributors such as Brutal Truth and Nasum. Lyrical themes range from a primary focus on social and political concerns, to gory subject matter and black humor.

A trait of grindcore is the "microsong", far shorter than average for punk or metal. Several bands have produced songs that are only seconds in length. Many bands, such as Agoraphobic Nosebleed, record simple phrases that may be rhythmically sprawled out across an instrumental lasting only a couple of bars in length.