Modern DJ mixers come loaded with lots of 'sound' effects buttons to add an extra dimension to a music track. Add in the extra potential with digital formats and there are literally millions of different possible combinations of effects.
What's emerged is a fascinating language to describe these effects. At BPM 2012, the national UK DJ conference, there was an education session to demo some of the latest effects. This was using a top end mixer (technically an Allen and Heath Xone DB4FX, retailing at c.£1600), working through the main effects and their parameters.