New York’s ultra-trendy Sister City Hotel recently collaborated with electronic musician Julianna Barwick on a sound-art installation to use as a lobby score. Barwick’s installation is powered by Microsoft’s Custom Vision Service, which tracks and analyzes various elements surrounding the hotel from a camera on the roof. These inputs, in turn, determine which of her compositions are played. Rain, sunlight and even planes trigger different looped sounds; Microsoft taught the installation’s AI software to recognize factors such as clouds and birds.