Halloween Teaser Song

[Ashtoreth]

Hmm, to be honest it doesn't sound similar to me.

There are many versions of the Kyrie; it is not a song by itself, it's a litany, so basically any composer can come up with a vocal melody for it.

The song in the AAMFP Halloween teaser sounds like something that could have been composed by Two Steps From Hell... *

Wow, really interesting, thank you ^^
By the way, I thought that kind of choirs are sung in Latin...

You're welcome ^_^
Yes, I think that the Kyrie is the only Christian litany of Greek origin.

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* EDIT: I just read the video description and AAMFP will feature a soundtrack by Jessica Curry, so my guess is that she composed that song.