Bacterial Orchestra by Olle Corméer and Martin Lübcke is a self-organizing evolutionary music installation. Several hardware units (cells) listen to their surroundings and pick up sounds, eventually integrating them into their own 'genom'. By analyzing the rythm, each cell decides which tunes to keep and which (possibly mis-sounding) tunes to drop. Thus, over time a strange but interesting music evolves.
As a follow-up to the Bacterial Orchestra, the group has now brought their approach to smartphones where each cell lives on a mobile phone.
That way different people can gather with their mobiles and together create a musical organism. It will evolve in the same way as Bacterial Orchestra, but the social component will give it additional extra dynamics.