In between the trees of the park hangs a grid of individual elements. The elements exist out of a movement sensor, an engine and the sound part of a chinese yoyo from bamboo. Each element will be reacting on the audience appearance. The handmade bamboo element taken from a Chinese yoyo will start spinning creating its very distinguished waving sound. If the spectator starts to walk around underneath the installation several elements will start to spin simultaneously creating an amazing soundscape.