On the operatic stage, her roles include Ellen Orford Peter Grimes (La Scala, Sydney & Tokyo); Blanche Dialogues des Carmélites (Bayerische Staatsoper); Countess Madeleine Capriccio and Tatyana Eugene Onegin (Grange Park); Micaela Carmen and Liù Turandot (Covent Garden); Donna Anna Don Giovanni (Bolshoi & Opera de Montreal & Scottish Opera); Elettra Idomeneo (Netherlands Opera) and Konstanze Die Entführung aus dem Serail (Deutsche Staatsoper & Bayerische Staatsoper). Title roles include Theodora (Glyndebourne); Rodelinda (Bayerische Staatsoper); The Bartered Bride (Covent Garden) and The Cunning Little Vixen (ENO).
On the concert platform her work spans many periods and styles and includes Ravel's Shéhérazade (RLPO/Mackerras); Brahms' Ein Deutsches Requiem (Berlin Philharmonic/Rattle & Philharmonia/von Dohnànyi); Berg's Bruchstücke aus Wozzeck (Swedish Radio Orchestra/Harding) and Honegger's Jeanne d'Arc au bûcher (Accademia Nazionale di Santa Cecilia/Pappano). Other highlights include Handel's Messiah (ROH Orchestra/Pappano); Elgar's The Kingdom (LSO/Elder); Shostakovich's Blok Romances (Nash Ensemble); Schumann's Das Paradies und die Peri at the Edinburgh Festival (SCO/Norrington) and in Vienna (Vienna Philharmonic/Rattle) and Britten's Les Illuminations – including the world premiere of Britten's three additional Rimbaud settings (BBCSSO/Brabbins). A Grammy nominated artist, she has recorded prolifically for Chandos, Hyperion, Deutsche Grammophon, EMI, Decca, Philips and Collins Classics among others.