EVOLVING RESPONSE. “Slime mold responds to external stimuli, so, upon hearing and seeing its own electrical signal, it reacts—creating a new and different electrical pattern. And so the process continues and the sound evolves into a cybernetic slime mold composition.”
http://singularityhub.com/2015/07/29/the-artist-whos-making-cybernetic-slime-mold-sing/