who created the unique combination of cutting and double backing called the quick mix theory
Turntablism To understand the significance of this achievement, it is important to first define the "break." Briefly, the "break" of a song is a musical fragment only seconds in length, which typically takes the form of an "interlude" in which all or most of the music stops except for the percussion. Kool Herc introduced the break-beat technique as a way of extending the break indefinitely. This is done by buying two of the same record, finding the break on each record, and switching from one to the other using the DJ mixer: e.g., as record A plays, the DJ quickly backtracks to the same break on record B, which will again take the place of A at a specific moment where the audience will not notice that the DJ has switched records. Using that idea, Grandmaster Flash elaborated on Kool Herc's invention of break-beat DJing and came up with the quick-mix theory, in which Flash sectioned off a part of the record like a clock.[13] He described it as being "...like cutting, the backspin, and the double-back." [14]