Students at the Copenhagen Institute of Interactive Design created an audio system on an RFID chip that interacts with the surrounding space. Columns play music of different genres, depending on what label they are on. Several speakers can work in a group, and each will play its own track. If you put a number, they are synchronized.
The project is made on Arduino controllers. The authors are going to modify the system to support a variety of sound effects and samples, which will be superimposed by rotating the column around its axis.