The private gallery and house are sited in the hills of the Kangbuk section of Seoul, Korea. The basic geometry of the building is inspired by a 1967 sketch for a music score by the composer Istvan Anhalt, “Symphony of Modules,” which was discovered in a book by John Cage titled “Notations.” Sunlight turns and bends around the inner spaces, animating them with the changing light of each season and throughout the day. Like a cesura in music, strips of glass lenses in the base of the pool break through the surface, bringing dappled light to the white plaster walls and white granite floor of the gallery below. Exteriors are rain screens of custom patinated copper, which ages naturally within the landscape.