“I do not state this lightly: this is an Iphigénie for the ages, and whenever she was off-stage I longed to see her on the stage again." - Schmopera
Other notable opera engagements include Soula's Asian debut in La Clemenza di Tito with the Taipei Symphony Orchestra, Handel's Teseo at Theater an der Wien, Les Pecheurs de Perles at Opera Holland Park, Don Giovanni in Guangzhou China, and the title role of Vanessa by Samuel Barber at the Opéra-Théatre de Metz Métropole, where she also sang the Gräfin Madeleine in Capriccio by Richard Strauss, marking her debut in the lyric dramatic fach. In 2019, she sang Elettra in Idomeneo at Teatro Massimo Palermo and Helmwige in Die Walküre at Opéra National de Bordeaux. She made her debut in Korngold's Violanta at the Teatro Regio Torino and participated in the Guangzhou Opera's 10-year anniversary gala in 2020, performing Wagner's Wesendonck Lieder. Soula was also a member of the ensemble of Oper Leipzig for three seasons, where she performed a variety of leading repertoire and returned on several occasions with the company as a guest soloist.
Soula is equally at home in orchestral repertoire with highlights including her debut with the Czech Philharmonic at the Prague Rudolfinum in Henri Dutilleux's Correspondances, a performance that was also broadcast on Radio France. She also performed Wagner's Wesendonck Lieder at the Attersee Festival, Bachianas Brasileiras at the Berliner Waldbühne, and New Year’s concerts at the Teatro Massimo Palermo. Further debuts include appearances at the Gewandhaus Leipzig, Berlin Philharmonie, Wüttembergische Philharmonie, RTÉ Concert Orchestra and the Orchestre National de Capitole de Toulouse, where she performed Mahler's 4th Symphony.