"During a set, a DJ plays records, i.e., products. The DJ’s work consists both of proposing a personal orbit through the musical universe (a playlist) and of connecting these elements in a certain order, paying attention to their sequence as well as to the construction of an atmosphere (working directly on the crowd of dancers or reacting to their movements). He or she may also act physically on the object being used, by scratching or using a whole range of actions (filters, adjusting the mixing levels, adding sounds, and so on). A DJ’s set is not unlike an exhibition of objects that Duchamp would have described as “assisted readymades:” more or less modified products whose sequence produces a specific duration. One can recognize a DJ’s style in the ability to inhabit an open network (the history of sound) and in the logic that organizes the links between the samples he or she plays.Deejaying implies a culture of the use of forms, which connects rap, techno, and all their subsequent by-products."
Bourriaud - http://www9.georgetown.edu/faculty/irvinem/theory/Bourriaud-Postproduction2.pdf
