He then joined a number of septetos, among them Septeto Cauto, led by Manuel 'Mozo' Borgella with whom he recorded in 1940 (including the song Efi Embemoro - the first Afro-Ñáñigo song to be recorded; Cheo Marquetti previously had recorded this tune in a duet setting with Bienvenido Granda in 1936, accompanied by Septeto Nacional de Ignacio Piñeiro).