Pioneer hoped to move the technology of DJ mixers forward today by launching a new addition to the DJM line. The DJM-2000 is the first mixer with a multi-touch display and uses the 5.8-inch LCD to provide control over the sound that would be difficult with buttons. At a basic level, it lets musicians put up a set of custom interfaces for controlling a Mac or PC's music software through MIDI. Gestures also work to create "sidechain" mixing, and on-screen sliders can fine-tune the frequency.