I have just checking some sites and come up with this artist doing most of her projects on sound and they are looking really interesting. Briefly, the first one is putting some electrods on a plants leaves and transforming the waves it gets to sound, thus you can see that the plant is exactly giving some physical feedback to the behaviours of the environment. The second project from the same source is called thinking sounds and it seems as interesting as the first one. Briefly It is getting somedata from your brain with the help of the EEG helmet and transforming this data into sounds. Actually funny because I was thinking to do a similar thing in my project in terms of approach. An approach which concsists of the environment of the piece and also joining the audience to this process. I have a metting with luke tomorrow so I hope it all gets better.
The link is here