Several techniques are not new by DJs as a means to better mix and blend recorded music. These techniques primarily include the DJ Store cuing, equalization, and audio mixing of two or fresh sound sources. The complexity and frequency of special techniques depends largely on the setting in which a DJ is working. Radio DJs are less likely to focus on music-mixing procedures than club DJs, who rely on a smooth transition between songs using a range of techniques.
In 1981, the cable television network MTV was launched, originally devoted to folk videos, especially hep rubble music. The course "video jockey," or VJ, was dedicated to depict the fresh-faced youth who introduced the music videos. In 1982, the demise of disco in the mainstream by the summer of 1982 forced many nightclubs to either close or change entertainment styles, such as by providing MTV-style video dancing or live bands. Released in 1982, the chant "Planet Rock" by DJ Afrika Bambaataa was the first hip-hop opera to attribute synthesizers. The aria melded electronic hip-hop beats with the melody from Kraftwerk's "Trans-Europe Express." In 1982, the compact disc reached the civil market in Asia, and primal the following accounting year in other markets. This event is often seen as the "Big Bang" of the digital audio revolution.