Kizomba, a slow and amorous genre that mixes Angolan semba with R&B and Caribbean zouk elements, is Portuguese-speaking Africa’s biggest musical export. Its scene is crowded with personalities: There are the big divas who speak to and about empowered women, and sweeter singers who opt for a more demure approach. One artist making waves is 22-year-old Chelsea Dinorath, a multifaceted performer who’s comfortable writing for a hip-hop crew, contributing melodies to a supergroup, and singing love songs in three languages. On “Sodadi”—the Creole spelling of “saudade,” the feeling of longing and desire for a moment or a person—the Angolan artist croons about missing her lover. The interplay of her winding voice and the rippling acoustic guitars create elegant tension. “Se me queres como eu quero/Porquê que me deixas assim?” (“If you love me as I want/Why do you leave me like this?”), she sings on the hook, emphasizing the weight of her desolation, as ad-libs and lustrous sub-melodies add subtle dimension. And while she sounds anguished, the overall effect is blissful.