If you find the idea of turntablism without the hardware intriguing, but last year's surface-based TRAKTOR Scratch DJ system was just a little too abstract for your tastes, here's a rather clever compromise from Cambridge-based designerTodd Vanderlin. Using a vinyl record equipped with an AR marker, he manipulates the music by moving in front of a video camera. It's also got the added bonus of being able to control the beat across a three-dimensional space, and if you're viewing it through the camera's feed, the middle marker's replaced by pre-set visuals. Direct your browser to after the break for a video demonstration.