Playing the New Bjork Album, and Playing Along, With Apps

Since Thomas Edison invented the phonograph, there has been only one way to listen to recorded music: Listen to it. That is, to consume passively a precise sequence of sounds exactly as they have been arranged. But what if, in addition to songs, a musician provided intuitive, creative tools that let you control the basic components of the music itself? What if the musician joined with programmers and visual artists to turn the songs into encompassing interactive experiences? What if listeners were to become participants?