I have a list of bands I'd love to hear more of, and N'gola Ritmos is high on the list. Even more, now that I saw these videos (from RTP, 1964). In awe of Monami and Lourdes Van Dunem. Amazing!
There's also a book on that list: Marissa Jean Moorman's "Intonations: A Social History of Music and Nation in Luanda, Angola, from 1945 to Recent Times" (2008, Ohio University Press). Moorman is professor of African history at Indiana University. She writes:
N’gola Ritmos formed in 1947 and continued until the 1970s with various combinations of musicians including two female vocalists, Belita Palma and Lourdes Van Dunem. In the early 1960s some founding members were sent off to prison or exiled from Luanda to other provinces on temporary work assignments. The band played in a variety of venues in the capital, from the birthday parties of friends and families to the Liga, the city’s cinemas, and even the governer’s palace, as well as in other provinces. Carlos do Aniceto “Liceu” Vieira Dias was the group’s founder. Angolan musicologists credit Vieira Dias with translating songs of rural derivation into a popular music that was danceable and, in so doing, unleashing the development of urban popular music and in the particular the form known as semba.Enjoy these, read up, and do let me know if you find N'gola Ritmos LPs (or even crazier, have double copies for sale)!