In 1977, Cachao was brought to a studio by musicologist René López to record two new albums for the Salsoul label: "Cachao y su Descarga 77" and "Dos". Half of the recorded tracks were danzones composed by Cachao during his early career, whereas the other half consisted of Afro-Cuban descargas, as in the later stages of Cachao's career. The recording sessions featured prestigious musicians including "first generation" descarga artists such as Alejandro "El Negro" Vivar, Alfredo "Chocolate" Armenteros, Carlos "Patato" Valdés and Julito Collazo, as well as members of the "second generation" of descarga and salsa musicians such as Barry Rogers, Nelson González and Andy González.