Help finding name of song used in Vice Principals.
 

I need help to find the name of a song used in the HBO TV show "Vice Principals". The song is played during the end credits of Episode 9 of Season 1, and again at the beginning of Episode 1 of season 2.

The song sounds like a bunch of children singing something that I cannot understand, and there are drums and trumpets accompanying them. I have not found any uploads of those scenes on the internet I can use for reference, so unless you have pirated episodes of the show, own it on laser disc, or have an HBO account you cant look it up to see what I am talking about.

I have used Shazam many times, most times it doesn't find the song, and other times it has found two different songs that uses samples from the tune I am looking for.

The first song that uses samples of it is "Fire" by "RFAIP", you can hear it on soundcloud here: soundcloud(DOT)com/rfaip/fire-1
The part I am looking for start to become audible at 02:06 and cant be heard again after 02:47.

The second song that uses samples of it is "Head on a Stick" by "Education", you can hear it on soundcloud here: soundcloud(DOT)com/education-music/head-on-a-stick
The part I am looking for is only heard in the first 18 seconds of the song.

I found the song in another forum, the song is "Kyrie Eleison" from the movie "Lord of the Flies" from 1963.

:clap:

:beer:

BTW Which forum was that? I have a similar problem, that's why I'm asking.