In the series.
There are plenty of games out there with worse battle theme or world map themes. "Don't Be Afraid" and "Blue Fields" aren't bad songs. Just...average, really. But the rest of the series has some pretty good battle themes and world map themes, so those two rank on the lower end of the spectrum.
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http://images.cheezburger.com/completestore/2011/8/22/2094c2de-bae8-4f5b-9f27-67eaff0aaeaf.jpg