Right in our backyard, from Chicago Projection Mapping:

Songlight is an interactive visual system that allows a user to create projections and music through an ordinary-looking piano keyboard. Designed both for special events and live performance, Songlight is the canvas for infinitely flexible and customizable displays. Projected visuals can be created in any style or shape, including colors, textures, video, or full motion animation, and can be scaled for applications ranging from five square feet to fifty-story skyscrapers.

Awesome work!