Ok-- inspired by Chris and Shackman, here's a new thread on turntablism... I am just a beginner in this stuff, but I have thought a lot about it, so here goes.
Think of DJing or turntablism as performing with either phonorecords or CDs/ hard drives through manipulating sounds on these media to create music. This has usually involved two or more record players being used such that sounds and beats play over each other. There is usually a record of just a drum track or something of a rhythmic nature that is going on first. Then, you can add another record/ sound source over it to create something new.
These sources are usually looped, which is easier to do in digital media through software looping capability. Effects can be added and creativity called upon to make something unique to the performer.
I like the idea because I can record my own beats/ samples to then manipulate on my own through this new method. Once I get something interesting started in the way of a beat or repeating sound/ phrase I like to perform or improvise music over this bed of sound I started.
it's fun and doesn't necessarily have to sound like hip-hop or related music. I think it offers another universe of creativity, especially when combined with the techniques that came before it.