The swallow's flight, a symbol of freedom, is the starting point of Le Bleu du Ciel, built from a childhood memory of swallows singing in the sky and gathering on electric wires before their journey to the Sahara. Associated with travel and liberty, their flight inspired Édouard Taufenbach and Régis Campo's idea of a "score made of ruptures, accelerations and silences" where abstract forms appear like signs to interpret, the two laureates of the Prix Swiss Life à 4 mains uniting photography and music into a sensitive representation of time's passage, movement and exchange within a single space, shortlisted for the 2020 Prix Nadar.