Start off your weekend with an anthropological expedition to Latin America. Ross Amico will be your guide to music from “Green Mansions” (two separate film scores, by Heitor Villa-Lobos and Bronislau Kaper), “Kings of the Sun” (Elmer Bernstein), and “The Night of the Mayas” (Silvestre Revueltas). Pith helmets and mosquito nets will be distributed, this Friday at 6 pm.