Another video released just a couple days ago using augmented reality markers as alternative interface and controller for parameters in music programs… in this case, Quartz Composer. I’m not familiar with Quartz Composer so I can’t tell you much detail apart from what the video description and in-video commentary says. Work by Rishabh Rajan.
Augmented Reality in Quartz Composer used to generate OSC messages to manipulate parameters of Buffer Override as an insert in an audio track.