Bárbara Kusa was born in San Luis (Argentina). She began her study of music there, but moved to Buenos Aires to pursue her studies in the Facultad de Artes y Ciencias Musicales in the Catholic University of Argentina. She was awarded a degree in choral direction and is now continuing her studies in singing with Professor Mónica Capra. Her teachers have included Néstor Andrenacci, Josep Prats, Werner Pfaff, Monique Zanetti and Renata Parroussel.
She has made several concert tours in Argentina, Brazil, Spain, Canada, France, Italy and Switzerland with several ensembles, including the Coro Polifónico de San Luis, Pigmalión, the Compañía Los Festinantes, Cantica Nova, Proyecto Croma and the Ensemble Louis Berger. As a soloist she includes in her repertoire works by Schubert, Brahms, Mozart and Vivaldi as well as works by the Jesuit missions of Chiquitos (Bolivia, 18th century). She has often sung under the direction of Néstor Andrenacci, Javier Zentner, Claudio Morla, Ricardo Massun and Gabriel Garrido.
She has made several recordings as a soloist and as a member of the various ensembles to which she belongs. Among the discs made for Argentine and French labels are Música en las Reducciones de Chiquitos, Vêpres solennelles de Saint Jean Baptiste, Missa de Lima - Venid Deidades.