Hariclea Darclée "Roméo et Juliette" (Juliette); Jacques Halévy "La Juive" (Rachèle); Ruggero Leoncavallo "I Pagliacci" (Nedda) – opera interpreted in première for Romania at Bucharest National Theatre in 1903; Ruggero Leoncavallo "Zaza" (Zaza); Luigi Mancinelli "Hero e Leandro" (Hero) – opera composed for her voice and interpreted in prima assoluta at Madrid, in 1897; Pietro Mascagni "Cavalleria rusticana" (Santuzza) – oper interpreted in première for Romania at Bucharest National Theatre in 1891; Pietro Mascagni "L’amico Fritz" (Suzel) – opera interpreted in première for Teatro Della Pergole of Florence in 1891 and for Bucharest National Theatre in 1910; Pietro Mascagni "Iris" (Iris) –
Sonia Theodoridou Corinna in "Il viaggio à Reims", Giulietta in "I Capuleti e i Montecchi", the title role in "Maria Stuarda", Cleopatra in "Giulio Cesare", Jenny in "Mahagonny" and Santuzza in "Cavalleria Rusticana". She has released two operatic CDs. Theodoridou has said in interviews that she enjoys singing the work of Jacques Brel, Kurt Weill, Manos Hadjidakis, Mikis Theodorakis and Édith Piaf as much as she enjoys opera. In 2010 she and her husband (conductor Theodore Orfanidis) created "Orchestra Mobile", an orchestra composed of renowned European musicians who can play in every city literally at once. In April 2011, she organised and