so if edgar got married, would his wedding song be, the marriage of figaro? *social lol*

Okay than lets look at it like this. the statues and eventually kefka controlled magic which made magic in nature in that world uniformed and controlled by magical creatures only, only in their death when they became magicite, that they could teach the holder magical spells.
so now the statues and kefka are destroyed, the espers are gone because they were a product of the imagination of goddesses. so the uniformed version of magic is now gone. blue magic still exists even though that is not taught by espers, it is learned by mimicing monster based attacks much like gau in a primitive sense. so now magic is chaotic, has to be learned by people who have a natural magical attunement to it.

so any spell learned would be through efforts of trial and error in attempts to control a spell that is now chaotic in nature. and then the teachings would be put on scrolls or what ever they would use. for those who play dungeons and dragons think of a wizard.