I’m not sure exactly how it’s done, but this website seems to record something recorded in ‘plant communication’ sessions that is converted into sound. The sound-art installations are created by Philip Blackburn using a Biowave (brainwave EKG set of electrodes), proximity and turn knobs. These send MIDI data to his laptop that where they are ‘mangled’ and interpreted by a custom MaxMSP patch. The tonal arrangements on his oddsandendsorchestra blog come out of many widely spaced speakers at ground level and sounds a bit like cicadas, water, wind, geese flying over, and enthusiastic frogs.
Click here or on the image above to listen to the mix of ‘plant music’.