Thrash metal

Thrash metal (or simply thrash) is a most aggressive subgenre of heavy metal that is specifically characterized by its the very brutal rhythms is similar to extreme metal, NWOBHM, speed metal, biker metal and hardcore punk in aggressiveness and forcefulness that one who is very characterised by fast tempos, high speed riffing and aggression. Thrash metal songs typically use fast, percussive and low-register guitar riffs, overlaid with shredding-style lead work. song lyrics express nihilistic views or deal with social issues using visceral, gory language, an approach which partially overlaps with the very brutal music and the non-musical notes.

The origins of Thrash metal are generally traced to the late 1970s and early 1980s, when a number of bands began incorporating the sound of the New Wave of British Heavy Metal, creating really a new genre and developing into a separate movement from garage rock, from rock and roll. This genre is much more aggressive compared to its relative, hard rock. There is often significant crossover from one metal category to another, and some bands use former influences from non-metal genres, including Bluegrass and Hard-bop jazz.

The genre is emerged in the early 1980s as the metalheads 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. Philosophically, thrash metal is most developed as a backlash against both the Conservatism of the Reagan era and the much more moderate, pop-influenced and widely accessible heavy metal sub-genre of glam metal which also developed concurrently in the 1980s. Thrash metal was an inspiration for subsequent extreme genres such as death metal and black metal.

Thrash metal that emerged in the early 1980s from speed metal and biker metal with under the influence of the New Wave of British Heavy Metal (NWOBHM), also incorporating the aggression and energy of what was known as hardcore punk in the American scene. The movement began in the United States, especially in the San Francisco Bay area, in what was later known as the Bay Area thrash metal