I don't always like the changing trends in music, but the changing musical tech/methods/potential is a good thing.

The example that comes to mind for music remakes is the FFXII Gilgamesh battles which got their brand new own rendition of the classic "Clash on the Big Bridge" Loved it, fit the tone of FFXII perfectly, though despite the obviously dated sound I like the original FFV one with its energy equally as much. It's been redone other times besides but FFXII is the one I remember and associate with good music remake.

FFV:


FFXII