I saw a rerun of The Nova program that ran about a year ago about the child sacrifices.
One of the background musics they played sounded almost exactly like “Yulunga - Spirit Dance” by Dead Can Dance off Into The Labyrinth. Not as in they both evoke vaguely native Latin American rhythms, but I mean same exact drums and singing.
So, did they just use the Dead Can Dance track per se? I don’t have the program recorded so I can’t go back and check.
Alternatively, did DCD use a traditional Andean song in writing Yulunga?