Hey kids, I probably could find some of these, but im lazy. Heres a really useful site. Unfortunately most of the stuff is in chinese or japanese, so itll be hard to just search in english for the song you want. But you are more than welcome to search. Also as a note, some of these songs you'll either have to cut short or not be able to play yet...since they are from korean, japense, tw servers, they are able to play at better ranks then NA players can now...anyway enjoy:
http://www.wsm.idv.tw/mabinogi/ac_comproser.php