Music Hall in the Sky is a small concert hall for classical music in Tokyo. In spite of a location surrounded by city residences, you can enjoy music in an environment where only the sky seems to exist outside. It is because windows are positioned only in the places from where houses can’t be seen, and in addition, a ribbon window at the foot of the stage was set up, which combines a mirror and a top light to reflect the sky above. By this arrangement, the sky lower than eye level becomes a part of scenery, and it would make you feel as if the whole building were surrounded by the sky.