During her studies, she partook in numerous opera productions, treading the boards with roles such as the Composer, Hänsel, Dorabella (Wietzow Opera), Marcellina, and more.

Austrian mezzo soprano Helene Feldbauer embarked on her musical journey with studies in music- and instrumental education at the Mozarteum University in Salzburg. Her pursuit of excellence led her to the University of Music and Performing Arts in Vienna, where she studied singing under the guidance of Margit Klaushofer, Lied with Florian Boesch, and opera with Prof. Chr. U. Meier. She successfully completed her Master’s degree, graduating with the prestigious distinction of Suma cum laude.

In the 2022/23 and 2023/24 seasons, Helene became a member of the Frankfurt Opera Studio, where she expanded her repertoire and stage experience with roles such as Cherubino in Le nozze di Figaro, the Second Maid in both Daphne and Elektra by Strauss, the Apprentice in Wagner's Die Meistersinger von Nürnberg, and the Boy in Kurt Weill's Der Zar lässt sich fotografieren.