I'm a newbie to this area and can anyone walk me through the process of how a dj remix a track? for example, what's the differences in the process of a producer vs. a dj making/remixing a track? I know the dj's use an existing track but is it more common for them to use loops/samples rather than using midi instruments to add chords, fills… kinda like how a producer create a track? Also when you remix a track, how do you extract each instruments in the track (vocal, synth, keys…) to rearrange them?