Anyone noticed that Final Fantasy Tactics Advance A2 uses some of the same songs from FF 12?

For eample
Final Fantasy 12 - Salikawoods and Final Fantasy Tactics Advance 2 - Into the Fantasy

Final Fantasy 12 - Esper Battle and Final Fantasy Tactics Advance 2 - Determination

I think there are about 5 more or so, but these are the two I know off the top of my head.