I'm thinking about buying the soundtracks to GBF when I get the opportunity (the music is amazing!) and after doing some research I saw that besides the OST there's also a Battle Tracks CD and Story Tracks CD. I also read that the OST doesn't have all the music from the game.
So I'm wondering how much overlap there is - are there tracks from the OST that are also on the Battle and Story CDs, and vice versa? Just want to know if I'll end up buying all three CDs.
I also see quite a few other GBF CDs on Amazon Japan, I'm guessing these are music from the events?