Animusic - Season 3 Episode 7 Fiber Bundles

An organic set resembling the bridge of an alien spacecraft pumps out plasma-enfused prog-techno. The strobed light show (probably) has invisible aliens tapping their feet. We think. Or something. The animation is set in a room bounded by alienistic dark green pipes, with colored tubes and pads that play when light flows through them from fiber-optic cables. The light flows through the cables at a visible speed, and so the cables probably are filled with supercold matter, called a Bose-Einstein condensate, which slows light down to a visible speed. The fact that the drums actually interact with these packets of lights is most likely due to there being glowing matter instead of light coming through their cables, which solidifies on contact with air, and evaporates on impact.