Born in Wales, Hilary Summers has a wide repertoire ranging from the Baroque to contemporary works. She has taken part in numerous premieres, including György Kurtág's Fin de partie at La Scala in Milan, Elliot Carter's What Next at Berlin's Staatsoper Unter den Linden, Gerald Barry's The Importance of Being Earnest in London and New York, Alice's Adventures Under Ground by the same composer with the Los Angeles Philharmonic, Peter Eötvös' Le Balcon at the Festival d'Aix-en-Provence, Michael Nyman's Facing Goya and War Work. She has been a regular collaborator with Pierre Boulez since 2004, notably performing and recording Le Marteau sans maître (Grammy Award). She also works closely with Christian Curnym and The Early Opera Company. Her operatic repertoire includes the roles of the Witch (Dido and Aeneas), Polinesso (Ariodante), Juno (Sémélé), Cornelia (Giulio Cesare), Geneviève (Pelléas et Mélisande), Baba la Turque and Mother Goose (The Rake's Progress), Tisbe (La Cenerentola), Gaea (Daphne), Mrs Sedley (Peter Grimes), Mescalina (Le Grand Macabre), Tiger Lily / Mrs Darling (Peter Pan), Hippolyta (Britten's A Midsummer Night's Dream), White Queen and Dormouse (Alice's Adventures Under Groun). At the Opéra national de Paris: The Rake's Progress (Mother Goose), 2008; Fin de partie (Nell), 2022