Titled “Polyphonic Worlds: Justice as Medium,” the eighth Contour Biennale in Mechelen, Belgium, addresses the nation-state system and the realm of justice today. The editorial approach of its accompanying reader, Hearings, borrows from the juridicial and musical spheres. Launched as the online journal of the biennial, the reader pairs texts or image-based contributions, allowing for a sense of tension and affinity to develop in the feedback loop of the two voices.