‘Un Giorno X’ is a multimedia opera combining song, music, video art, poetry, and narration, conceived by Roberto Cacciapaglia with texts by Giada Manca di Villahermosa. Premiered in 1990 at the Sala Verdi of the Milan Conservatorio, this innovative work explores the deep relationship between music and words through a multifaceted artistic experience.

The narrative revolves around the myth of Odysseus as the "Eternal Wanderer," tracking a traveler who comes from a remote age when humankind first invented poetry. The journey and the return serve as the dual themes of the opera, adapting ancient archetypes to the paradoxes of the contemporary world.

In this modern allegorical landscape, the fascinating eye of the Cyclops becomes the television screen, the deceptive seductions of the Sirens turn into the obsessive formulas of advertising, and Circe’s filters materialize as the deadly trap of drugs. As "Day X" comes to an end, the past dissolves, and the traveler awakens as if from a dream, reminding us that the story of Odysseus repeats itself within every human being.