in Eugene Onegin at the Lyric Opera of Queensland and Cio-Cio San in Madama Butterfly with Auckland Opera. With Opera Australia she has performed Countess Almaviva in The Marriage of Figaro, Cio-Cio San, Desdemona in Otello, Emilia Marty in The Makropulos Affair, Lauretta in Gianni Schicchi, Marie/Mariette in the Australian premiere, directed by Bruce Beresford, of Die tote Stadt, the Marschallin in Der Rosenkavalier, Marzelline in Fidelio, Nedda in Pagliacci, and the title roles in Arabella, Manon Lescaut, Salome and Suor Angelica. In 2011, Barker sang the title role in Opera Queensland's production of Tosca, a role she had portrayed before in London and Sydney. After withdrawing from a 2010 production of Tosca by Opera Australia, she sang this role for the second half of Opera Australia's production in August 2013. Later that year, she reprised the role of Desdemona with Opera Queensland. Barker's appearances with the English National Opera include Donna Elvira in Don Giovanni, the Foreign Princess in Rusalka, The Governess and Miss Jessel in The Turn of the Screw, Oksana in Christmas Eve, Musetta, Tosca, and the title role in Richard Strauss's Salome. As a guest artist Barker has appeared at De Nederlandse Opera (Cio-Cio San, Emilia Marty), the Royal Opera, London (Jenifer in The Midsummer Marriage), the Scottish Opera (Adina in L'elisir d'amore, Annius in La clemenza di Tito, and Tatyana), the Vlaamse Opera (Suor Angelica, Liù in Turandot), and the Welsh National Opera (Káťa Kabanová). In 2004 she portrayed Sarah Miles in the world premiere of Jake Heggie's The End of the Affair at the Houston Grand Opera with her husband Peter Coleman-Wright as her role-husband and Teddy Tahu Rhodes as her lover. In 2009 she sang Cio-Cio San for her first appearance with the Paris Opera. The inaugural Australian cruise of the performing arts on the in November 2014 included Barker as well as, among others, David Hobson, Colin Lane, Teddy Tahu Rhodes, Simon Tedeschi, Elaine Paige, Marina Prior, and Jonathon Welch. The Australian premiere of Brett Dean's opera Hamlet at the 2018 Adelaide Festival featured Barker as Gertrude. Personal life Barker has one son, Gabriel, with her husband Peter Coleman-Wright. The couple have performed together in several productions: Tosca (2002, ENO and 2005, Opera Australia), The End of the Affair (2004, Houston Grand Opera), Arabella (2008, Opera Australia, Sydney Opera House and State Theatre (Melbourne)), concert recitals (2008 in Sydney with Piers Lane,