Between 1960 and 1963 she continued her harp studies with several scholarships in Amsterdam with Phia Berghout, in Paris with Jacqueline Borot, and in Cologne with Hans Zingel.
[2] In 1965 Rosa takes part in the first Portuguese happening at Galeria Divulgação, along with António Aragão, E.M Melo e Castro, Sallette Tavares (poet), Manuel Baptista, Jorge Peixinho (composer) and Mário Falcão (another harpist).
At the end of the 1970s, along with Carlos Franco and Luísa de Vasconcelos, Rosa formed Trio Antiqua, which focused on the interpretation of ancient music.
[7] In 1976, Rosa started writing as an individual composer; at Jorge Peixinho's suggestion, her work Encontro for flute and string quartet was taken to the Tribune Internationale de Compositeurs in Paris by Joly Braga Santos and Nuno Barreiros.
[8] Rosa composed over seventy works for solo instrument, chamber ensemble, symphonic orchestra, opera and cantata, among others.