Ever stop and wonder just how DJs can take an ordinary vinyl record, scratch it up and produce a congruent piece of music? Just what are they doing with those fast fingers? A new visualization system has been developed to do just that. Created by Jessie Kriss, Visual Scratch syncs a computer with a turntable to produce a real time graphic depicting exactly what’s going on. A great educational tool and presumably also pretty useful for even a seasoned turntablist.