Fleur launches the 2023-24 season with the London Symphony Orchestra, where she is the soloist in their Season Opening Concert at the Barbican, performing Claude Vivier's Wo bist du Licht, and in performances of Stravinsky's Pulcinella the following week, both under the baton of Barbara Hannigan. Autumn 2023 sees the release on Pentatone Records of her performance in the title role in Purcell’s Dido and Aeneas with La Nuova Musica, and she also begins a multi-season partnership with the Barcelona Symphony Orchestra and conductor Ludovic Morlot, joining them to record Ravel's Shéhérazade and Trois Poèmes de Mallarmé, and for performances of Shéhérazade and Montsalvatge's Cinco Canciones Negras at L'Auditori Barcelona and on tour to Hamburg and Stockholm. Further orchestral engagements include Mahler’s Symphony no.3 with the Czech Philharmonic and Semyon Bychkov at the Baden Baden Festival, and both Das Lied von der Erde and Mahler Symphony no.2 with Orquesta Sinfónica del Principado de Asturias under Nuno Coehlo. Fleur also debuts three opera roles: Penelope in Monteverdi's Il Ritorno d'Ulisse in Patria with baroque ensemble I Gemelli, which tours to major venues including Teatro Real Madrid, Opéra de Bordeaux and Théâtre du Capitole Toulouse; multiple roles in George Benjamin's Into the Little Hill with the Staatskapelle Berlin under Finnegan Downie Dear; and the title role of John the Baptist in the baroque opera La Decollazione di San Giovanni Battista with Haymarket Opera in Chicago.