As a verb, "to DJ" is regarded as the act of mixing songs in any given order (again, regardless of whether they are mixed end-to-end or in a concurrent, layered fashion). However, in some circles, to use "DJ" as a verb implies that the disc jockey will perform a series of mixes in succession over a period of time in which the songs gain emphasis from each other to provide a more dramatic, perhaps more holistic, musical experience.
THE DJ AS AN ARTIST
A recent phenomenon in the musical community (but primarily within the sphere of popular music) is the assertion that some DJs are not simply "playing records" but are in fact creating new music out of the playback and mixing of the pre-recorded media. Fuelled mainly by the innovative mixing techniques that have come out of the hip hop and EDM scenes, and regarded as a musical extension of the literary cut-up technique, this growing attitude posits that such a DJ is not content simply to beatmatch two or three records and layer them over each other but that the end product should emerge as a new musical composition. To achieve this goal, such a DJ may employ such techniques as phrasing?, sampling?, scratching?, the application of effects (e.g., delay?, flange?, etc.), and any other technique the DJ feels inclined to use. Examples of such DJs as "artists" adding musical or dramatic value include Coldcut and [DJ Spooky]?. In effect they are developing an aural montage that may be spontaneous/improvised or carefully crafted. There are parallels in surrealism and the visual arts.