so I gone try my luck here. I am going crazy here, I know I heard somewhere a similar song especially the beginning this "mayakashi" - but I can not remember where.
Here is the theme on youtube, the important part is the first seconds - I heard somewhere (probably in another anime theme the same beginning but then the lyric is changing - but from the style its somehow the same.
http://www.youtube.com/watch?v=Uf7L5484-lo
Maybe you guys know a similar theme like this one.
Thanks.