What is the chorus that plays with each new major monster in Fairy Tail called? I'm dying to know the name of the chorus music that plays when major demons are presented such as Deliora and the flute demon.

I tried looking through some soundtracks on YouTube but can't find it.
I believe the name of this song to be Akuma Deliora. 
It could be found on the OST Vol. 1 as song no. 30. 
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