Roberto Parra Sandoval (* Santiago, Chile, 1921 - † Santiago, Chile, 21 de abril, 1995), a.k.a "el Tío Roberto" was a musician, song-writer, and chilean folklorist, part of the legendary Parra family, to wiich also belongs his brothers Violeta, Eduardo and Nicanor. Discography * 20 Cuecas con Salsa Verde (1965, with "Trío Los Parra") * Las Cuecas de Roberto parra (1965) * Carpa de La Reina (1965, various artists) * Las Cuecas del Tío Roberto (1970, with Ángel Parra)