In a performative sound installation using the medium of pyrotechnics Lea Letzel will deal with notations and their visual and auditory choreography in space raising the question of the connection between sounds and culturally determined mental images. The background of her project is the examination of the Hanabi-Fu notation by the chemist and firework artist Takeo Shimizu, which she discovered during a scholarship in Japan. Letzel's residency at the Max Planck Institute was dedicated to researching this notation, its prerequisites and possibilities. Together with Akiko Ahrendt (violin) and Florian Zwißler (analogue synthesizer) she arranged the fireworks score Hanabi-Fu as a concert performance and will perform it on two evenings in the exhibition.

Pedro Oliveira's sound and video installation deals with the use of accent recognition software in European asylum processes and examines sound for its political dimension and its inherent power structures. His work focuses on the human voice and the question of the materiality of sound archives in the field of political surveillance. The question of how machine listening can be instrumentalized as a violent and dehumanizing means when embedded in asylum procedures was the focus of his residency and has been translated into a poetic narrative for the exhibition. In addition, Oliveira shows a series of drawings that deal with acoustic biometric technologies as a visual reflection.

At the centre of Alexander Tillegreen's work is an immersive sound installation that deals with psychoacoustics and the perception of language. Based on a phenomenon from music psychology, so-called "phantom words", Tillegreen creates a listening room in which every person is confronted with auditory illusions and perceives different word structures based on their own subjective situatedness. The material of the sound work and its artistic arrangement was developed in interdisciplinary cooperation and dialogue with scientists at the Max Planck Institute including an ongoing scientific experiment on psychoacoustics. Additionally Tillegreen shows sculptural work and a series of graphic prints which function as visual reflections of different modes and states related to sound and listening. The combination of these works constitute his ongoing investigation into the connections between the visual, sculptural, and the auditory.