Composed by Louis Crelier with a libretto by Valérie Letellier, Requiem ad Pacem is presented as a newly created oratorio led by conductor Antoine Marguier. The Orchestre des Nations joins Chœur Lyrica-Opéra and Chœur Pro-Arte de Lausanne, with Michel Voïta as récitant, to shape a ritual soundscape that balances solemn choral writing and intimate solo passages. The work meditates on mourning and the search for reconciliation, enveloping audiences in dense harmonies and austere, luminous textures.