In previous seasons, Guèze performed Pinkerton in Madama Butterfly at the Angers-Nantes Opera, the role of Shakespeare at the Wexford Festival in their production of Le Songe d'une nuit d'été, and Don José in Carmen with both Teatro Massimo (Palermo) and Opera North. Sébastien performed the title role in Les contes d'Hoffmann in Dresden, Essen, and Cologne conducted by Kent Nagano, Don José in Carmen in Geneva, Leipzig, and Seville, the title role of Werther at La Fenice, Faust in Omaha, and Lensky in Eugene Onegin in Charlotte, La vestale by Spontini at the Theater an der Wien, Roméo in Roméo et Juliette in Hong Kong, Maurizio in Adriana Lecouvreur in Saint Etienne and Faust in La damnation de Faust at the Met.

In his early days, his career consisted of a master's degree in international commerce at the Institute of Administrations and Enterprises of Montpellier, then a First Prize in singing at the C.N.S.M.D. from Paris. He won the Audience Prize and the Second Prize of the Operalia - Placido Domingo Competition in 2006. From then on, he was hired for his first Rodolfo in La bohème at the Athens Opera, directed by Graham Vick, a role that he sang on the stages of La Fenice, at La Monnaie in Brussels, Geneva, Helsinki, Cologne, Austin, Leeds Opera North, Bordeaux, and Liège among others.

He has also performed Alfredo in La Traviata at the Semperoper in Dresden, at the Wielki Theater in Warsaw, and at La Monnaie; the title role in Les contes d'Hoffmann at the Aalto Theater in Essen, Freiburg, Bonn, and Wiesbaden in Germany; Roméo in Roméo et Juliette in Amsterdam, Monterrey in Mexico, and Miami; Nemorino in L’elisir d'amore in São Paulo, Brazil; the Chevalier Des Grieux in Manon in Marseilles and Vilnius; Il Duca in Rigoletto in Guadalajara and Mantova alongside Placido Domingo; the title role of Faust in Wroclaw, Omaha, Toulon, Reims, Pamplona; Pelléas et Mélisande at the Opéra de Nice; Pinkerton in Madama Butterfly in Avignon; Nadir in Les pêcheurs de perles at the Opéra National du Rhin, and Le Chevalier de La Force in Dialogues des Carmélites at the Opéra National de Lyon.

He performs rarities from the French repertoire: Fabrice del Dongo in La Chartreuse de Parme by Sauguet at the Marseille Opera; Pyrrhus in Andromaque by Grétry in Brussels, Nuremberg, at the Festival de Radio France, and at the Théâtre des Champs-Elysées; Mylio in Le roi d'Ys in Liège, Saint-Etienne, Montpellier, and at the Opéra Comique in Paris; Shahabarim in Salammbô by Reyer; Vincent in Mireille in Marseille; Floreski in Lodoïska by Cherubini at the Santa Cecilia Academy in Rome and at the Theater Champs Elysées; the creations of Marius in Marius et Fanny by Vladimir Cosma; Jacques in Un amour en guerre by Caroline Glory and Patrick Poivre d´Arvor in Metz; as well as Christian in Cyrano by David DiChiera in Miami and Detroit. He also sings in concert at the Chorégies d'Orange, at the Salle Pleyel, at the Harare International Arts Festival in Zimbabwe, at the Alizés Festival in Morocco, at the Oji Hall in Tokyo, at the Grand Hall Philharmonic in Saint Petersburg, and at the Walt Disney Concert Hall in Los Angeles.

Current as of August 17, 2023