Remember in Futurama when Fry learned how to play the holophoner? Could visual elements be the future of band music as well as dance?
If traditional (albeit modern) dance studios are going in this direction, why not symphony orchestras? They already have the laptop orchestra and pieces with a visual (film) component. Why not reactive, real-time video? I picture this becoming a standard expectation of all types of performed music in the upcoming decades. It’s only a matter of time until it trickles down into the educational setting as well.
Picture this: 100 years ago, the visual element of an orchestra performance was the orchestra itself. 100 years later the visual element is abstracted through recordings and raised expectations of the audience. Heck, Fantasia predicted this long before we had music video, not to mention Jitter and Quartz Composer.