In Seoul there are about 60 large electronic advertising panels showing commercials. The curator Hans-Ulrich Obrist came up with the idea of exhibiting the work of about 40 artists and writer-directors on these tennis court sized surfaces, interspersed into the advertising program. Schönberg wrote Accompaniment to a Film Scene, music where one has to imagine the film. The obvious step was to make a video without sound but which referred to music. (Harun Farocki)