[Kaguya]

Evillious chronicle is a series that spans over many cd's more of the songs have been released so I'm as happy as a kid in a candy store. It even has a manga *w*

I know the trilogy you're talking about, found some nice dubs, I'll give the links to the Japanese ones so you can re add them if you like.

Looking for you in the sky:
https://www.youtube.com/watch?v=eiNc0N-447E

Paradise of light and shadow:
https://www.youtube.com/watch?v=4_95P3xiYT8

Requiem of the spinning world
https://www.youtube.com/watch?v=UYD2YaD_L-c