Speedcore
Speedcore is a form of Hardcore Techno that is typically identified by its high rate of beats per minute and aggressive themes. Tracks can range from a little below 300 BPM to above 1000 BPM. Unlike other styles of aggressive dance music like Gabber, the high rate of BPM makes Speedcore less accessible as a danceable genre, although most fans of the genre headbang and mosh to the music.
The typical Speedcore track is characterized by a general anti-music and anti-establishment sentiment. The music is angry, aggressive and often attempts to foster an atmosphere of hostility for the listener. Speedcore DJs push the boundaries of electronic dance music and often use offensive themes in their music to create such extremes. They use audio samples of murder and rape scenes from movies and often incorporate samples of human screams and shouted obscenities.
The sound of Speedcore is created using sampled guitar riffs, the aforementioned audio samples, drums (including the Roland TR-909), static and a variety of other electronic sounds, all of which are usually passed through distortion filters to create an overall harshness. When combined with the higher Speedcore BPMs, this anarchic harshness can often create a music experience that is more closely related to noise music.
While most Speedcore artists are content to attack the normal standards of music, or even the Gabber music that spawned them, the extremism of Speedcore has caused some to turn inwards and parody the standards of the genre. Much like how Happy Hardcore relates to Gabber and Hardcore Techno, these songs utilize samples of lighter and more manic themes, like Bing Crosby and Futurama, to create their extreme sound.