I've been playing a little more of Final Fantasy 5 recently and I was really pleased to hear a waltz in the Viennese style. What does that mean? It's a tradition of playing the 2nd beat of the 1, 2, 3 feel in waltz just a little early. First, here's one of the most famous waltzes of all time here for you to hear a little of what I mean. Herbert Von Karajan conducts the Vienna Philharmonic, Strauss Blue Danube. You can hear the effect clearly between 1:45-2:23, although it's probably easier to hear around the 2 minute mark, once the orchestra has reached more of a steady tempo.
You can hear the same effect in Uematsu's Waltz Clavier (Tycoon Waltz) in the video below. It's most notable between :46-1:03. I love this classical, highly stylized reference! Note: Tycoon is the place in the game where the waltz happens and clavier is an older word synonymous with keyboard.