LISTENING TO ITSELF. “Martin’s project converts the natural electrical signals produced by slime mold into light and sound. But he then takes it one step further by creating a feedback loop. The system gathers the signal, feeds it to an evolutionary algorithm, converts the result into light and sound, then plays it back to the slime mold.”
http://singularityhub.com/2015/07/29/the-artist-whos-making-cybernetic-slime-mold-sing/