BERLIN.- Japanese composer and visual artist Ryoji Ikeda has conceived an exhibition for the Hamburger Bahnhof that, for the first time, compositionally unites the two symmetrical halls on the upper level of the museum’s east and west wings. The exhibition’s title “db” (abbr. for decibel) refers to this symmetry while simultaneously indicating the complementary relationship between the two exhibition spaces. Ikeda has designed the white room and the black room as counterparts, not only physically (brightness, color), but also conceptually and perceptually. The project is a composition in which time and space are shaped through the most minimal use of sound, light and visual elements. It is the artist’s first solo exhibition in Germany. Since the mid-1990s, Ryoji Ikeda (born 1966, lives in Paris) has been among the foremost international composers and artists in the realm of cutting-edge digital technologies and their i