Members: Emilio J. Brameri, Elvino Vardaro, Juan Caldarella, Lorenzo Massobrio

Argentinian trio, they recorded first as Trío Massobrio-Caldarella (on label Odéon), then as Trío Los Nativos (on Víctor) and as Trío Los Pampeanos (on Brunswick) -- formed by Juan Caldarella and Lorenzo Massobrio, completed by such tango musicians as José Percuocco (violin), Osvaldo Schelotto (piano), Elvino Vardaro (violin), Emilio J. Brameri (accordion), or other musicians and singers.