This is called The V Motion Project and it was created by a group of creative folks that loved technology, digital art and music. The V Motion Project is stunning, a visual spectacle, where the artist inside creates music with his body. The technology presented in the video was being played live via a digital interface that captures body motion. Also, there are design elements (real time tracking and sample dragging) that brings authenticity to the performance. Read more on the tech behind V Motion here. The project reminds me of Jean Michel Jarre's live performances.
