Projected Instrument Augmentation is Real Piano Rock Band
"The Projected Instrument Augmentation system (PIANO) was developed by pianists Katja Rogers and Amrei Röhlig and their colleagues at the University of Ulm in Germany. A screen attached to an electric piano has colourful blocks projected onto it that represent the notes. As the blocks of color stream down the screen they meet the correct keyboard key at the exact moment that each one should be played." Rogers and Röhlig intentionally adopted gamification characteristics inspired by Rock Band 3's 1.5 octave keyboard, and have been by the system's effectiveness. Read more about the project on New Scientist.