No less than twenty solar-powered speakers, spread across natural landscapes, sing in tandem to produce a solar symphony. Where the Sun Boxes are arranged in an unruly mode, the music they produce is methodically comforting and methodical. As these eco-jukeboxes, created by Craig Colorusso, rely on sun for power, no batteries are involved. So, the music dies down as the sun sets. Well, if you have never seen (listened to rather) the installation striking some fascinating notes of guitar, watch it now, here:

Did you notice how the piece changed with the time of the day? Nope? You need to wait for the next performance i.e. May 8, from 12 until sunset.
Via: PSFK