DJ'ing as Live Graphics Performance

What is a Rastermaster? Someone who creates a live performance with music and graphics in real-time, and as tightly connected as possible, with a minimum of prepared material. Visually, prepared material like images or textures on 3D surfaces were acceptable. For a DJ the mix tracks were their 'textures' blended and chopped to suit the moment. Here's a new system that hints at allowing audiences to see (albeit reversed) what the DJ is doing, making his user interface a part of the graphic performance.