Klang is the largest of the three site-specific works Oursler created for the Ekeberg Sculpture Park. It is a constructed cave with video screens behind a sheet of reinforced iron with perforations and carvings. The work displays a complex tableau of moving images, videos, and sounds. The motifs of runes, inscriptions, hieroglyphs, formulas, emojis, and symbols are on a continuous loop from early morning to late evening every day. The sounds are monotonous and based on a dialogue that is difficult to put into context. Klang is inspired by the history of Nordic telecommunication and the cultural heritage of the Ekeberg area. The artwork explodes from the ground up to the stars in an imagined arc that connects it with the other works Oursler has made for the park: Cognitive & Dissonance and Spectral Power. Just like the other site-specific works, Klang is about how humans have communicated through time. The frenetic picture surface seems both eternal and everchanging, as though everything the audience is sensing is trying to communicate at the same time, resulting in confusion and noise. It is a depiction of the noise from all the information surrounding us—a distracting, but fascinating experience.