She graduated with a Bachelor of Arts and a Master of Arts in Piano Solo Performance with highest Distinction from the Mozarteum University of Salzburg, after receiving scholarships from the Onassis Foundation and the Gina Bachauer International Music Association.

Among her teachers were Imre Rohmann and Rolf Plagge.

She also has a Bachelor of Arts in Musicology from the National and Kapodistrian University of Athens.

Mousoura's repertoire focuses on the First Viennese School and the Romantic music of the 19th century.

Her appearances include concerts and master classes in China, Russia, the United States and Europe.