^Sometimes, it hurt my ears. Seriously those music are quite annoying.
But the fact that they said N was born from Pokemon parents means that he is possibly a Pokemon himself. Either a Ditto, a Mew, or a Zoroark! :o
It is N that believes he's born from Pokemon parents. So he he might still born from human parents. Its Ghetsis isolation from huma society that make N believes that he is come from Pokemon parents.