Grindcore
Grindcore - the style in rock music, which is rooted to punk, hardcore and thrashcore, appeared in the 1980s.The sound of music performers of this music style differs from other rock styles with fast drums, coarse singing, which often changes into growl and howl. It should also be noted that the length of tracks is incredibly short. They last, on average, less than a minute. Texts are full of immoral and unacceptable in a society ideas and themes: extraction of the peoples' internal organs, porn and other obscene. Sometimes lyrical component rises to the level of social issues. A good representative of grindcore is a band Napalm Death.