Birgit Mollemeier is a self-taught visual artist. After university studies in educational science and a career in socio-therapeutic work in Berlin, Germany, she moved to France in 2008. Deprived of her verbal expression, she sought other forms of communication. For the past decade, she has been exploring various artistic practices. Her work reconnects with the themes of her previous life, focusing on the individual's relationship with the world. She is fascinated by the body, by the envelope, the epidermis, and its function in our existence. Its protective nature, which shelters the inside from the outside, and its capacity to include or exclude, to make visible or invisible. Her works combine various materials—sculpted, slit, modeled, and sewn—as ways to suggest a porous space of transparency and fragility between the inside and the outside. Each envelope defines a boundary and thus separates. Birgit Mollemeier seeks to create tension between internal and external perceptions, fostering a dynamic relationship of exchange between the individual and their environment. She explores the permeability of the envelope without dissolving its protective and transformative character.

Emmanuel Faivre works with sound, frequently focusing on Soundscapes. Sound is, above all, a sensation. Adopting a listening posture is a form of attention toward others and our surroundings. Whether in daily life or while recording, it is about being ready to receive, without expectation. Taking the time. These sessions significantly develop our relationship with and attention to everyday listening. Through recording and mixing, local residents—both children and adults—work with the Soundscapes of their territory to create short narratives that will be presented for listening in the tunnels.