Her mother came from a family of artists and musicians which included the composer Mansi Barberis.
Sutzu married Radu Diamandi Demetrescu, who served as the chief of staff for Romanian Deputy Prime Minister Mihai Antonescu.
[5] Sutzu attended the Iasi Conservatory and the Ecole Normale in Paris.
Her teachers included Diran Alexanian, Nadia Boulanger, Aspasia Burada, Alfred Cortot, George Dandelot, Petre Elinescu, Gavriil Galinescu, Blanche Basscouret de Geraldi, Lazare Levy, Sofia Teodoreanu, and Ginette Waldmeyer.
She became a piano professor at the George Enesco Music School in 1959, and lectured at the Bucharest Pedagogic Institute until 1968.