Dawn Chorus consists of an array of 35 cymbals, each of which has an attached DC motor and solar panel. The motors are driven in real-time by sunlight and respond to changes in the weather, in particular, cloud cover. Attached to the motors are lengths of flex, which beat out a rhythm on the cymbals when the motors are powered by solar energy. In response to the varying feedback from the environment, Dawn Chorus autonomously produces different behaviours: sometimes a shimmering percussive noise whose intensity constantly changes and sometimes periods of complete silence.
Listen to a digital stream of the work here: Dawn Chorus