A
disc jockey (also known as
DJ or
deejay) is a person who selects and plays
prerecorded music for an audience.
A
remix is an alternative version of a song, different from the original version. A remixer uses
audio mixing to compose an alternate
master recording of a song, adding or subtracting elements, or simply changing the
equalization,
dynamics,
pitch,
tempo, playing time, or almost any other aspect of the various musical components.