Fire emblem-bravely default copied music

Okay I have just bought bravely default and started playing through it. I have been playing jrpgs for a while and have mainly focused on the fire emblem series. One of the first music tracks I heard was the conflict track that appeared on a random enemmy encounter: https://m.youtube.com/?#/watch?v=_R5lkM5EBjo this track is almost identical to one of my favorite fire emblem tracks found at the end of sacred stones and apotheosis in awakening: http://youtu.be/2H4M7VRMPC4#t=15s (cant find a link to the actual music). Can anyone explain this because? They are almost identical in tune.