The idea is that the composition Kórsafn (“choral archive” in Icelandic) becomes more complex over time.
Microsoft, in partnership with artist Björk and the Sister City Hotel in New York, is using artificial intelligence to create music that changes with the weather. According to Microsoft, the system “will not only find one bird, but also distinguish an entire flock of birds.” Seventeen years of choral sounds recorded throughout Björk’s career are mixed with changes in the outside world captured by a camera located on the hotel’s rooftop.
Upon entering the Sister City hotel, guests will be able to hear the heavens. But don't worry, you don't have to go to the United States to experience this feeling; the music can also be heard online, at hosting website. The video below shows how this ever-changing composition works:

