Clotilde Rosa was born in Lisbon in 1930. She took an early interest in music and started to study piano privately. She would dedicate her professional career to harp, having resumed her figured bass and ancient music interpretation studies with Santiago Kastner. Between 1960 and 1963 she received scholarships from the Calouste Gulbenkian Foundation and the Dutch Government to have private harp lessons with Phia Berghout, Jacqueline Borot and Hans Zingel, in Holland, Paris and Cologne. The courses she attended in Darmstadt after 1963 were also decisive to the future of her career as a composer. She participated in the group organized by Jorge Peixinho that in 1970 led to the Lisbon Contemporary Music Group. Between 1987 and 1989 she lectured in Composition Analysis and Techniques at the Music School of Lisbon’s National Conservatory and was transferred to the harp class between 1989 and 2000. It was then that she introduced for the first time in Portugal contemporary music in the harp syllabus. She asserted herself as a composer with the 1976 piece Encontro.