While the discography is significantly more extensive than some of their Angolan peers, the Google search results are similarly sparse. One suspects a degree of social commentary or political posturing, but the guesswork is based on my almost non-existent German, On that basis, Intriguing, but, given the lack of concrete detail, Obscure. File under: Angolan Outfits.
Discography:
In the music library : Angola Soundtrack - The Unique Sound of Luanda (1968-1976): Comboio
Angola, Soundtrack 2: Hypnosis, Distortions & Other Sonic Innovations 1969-1978: Saudades de Luanda