The Invisible Cathedral (La Cathédrale Invisible) is a film-concert specially created by Éric Rebmeister. It provides an insight into the history of the cathedral, its sculptures, stained-glass windows, organs, and several major events that occurred in Metz, along with some local characters. Entirely made from videos shot by drones inside and outside the building, the film reveals hidden features that visitors cannot see. The music will be performed by several ensembles brought together for the occasion: the Metz City Harmony Orchestra (Orchestre d'Harmonie de la Ville de Metz), the cathedral choir, the string ensemble of the Gabriel Pierné Conservatory (Conservatoire Gabriel Pierné – Metz Métropole) – and various soloists.
