DJing and turntables are techniques for manipulating sounds and creating unique music, using electric devices (or other audio sources) and DJ mixer, connected to a sound amplification system. Kul Gerk from Jamaica, one of the first hip-hop DJs, singled out a drum beat and created a continuous rhythm, using two identical records.
Other DJs continued to develop the Gerk’s method. Mixing in one or two different records, they created a unique piece of music. The sound effect of scratch (scratching), which occurs when manipulating the crossfader, has become one of the characteristic features of the hip-hop style.