A pair of middle-aged guys that can still rock it! Yello's deeply textured soundscapes have always begged for visual interpretation. I'm afraid their recent "virtual concert" concept, while well intentioned, couldn't make it above the waterline of popular interest. They're a niche phenomenon and need the kind of midnight movie marketing events that the broader music industry doesn't get very excited about.
Still, the Tiger Dust video stands out as one of those tremendously simple visual concepts that you'd love to see done live on stage (somehow) allowing for those little variations that bring life to live 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.