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Nostalgia can create an interesting conundrum. One presumibly likes to edit to music they enjoy. Nostalgic music often has a huge emotional impact in both a heavily sentimental sense, but also a circumstantial one. It's an obvious choice to edit to, but the circumstancial nostalgia makes it seem so very wrong to associate it with anything other than the events surrounding it's discovery. At the same time associating it with what's already happened is unthinkable, as in your minds eye, the way events transpired the first time are irreplaceable. Something you should never hope nor dare to replicate. Still yet, you almost feel obligated to create something with this one important part of your life that affects you so much.
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When you think about it, Sync in the literal sense is a very arbitrary way to judge how good a video is, don't you think? I only consider it the normal way of things because that's how I've always know it, but what makes it right or natural per-se? It's a method to create a certain reaction the viewer to be sure, but one would think it'd be a technique used much more sparingly than it is. In a video with vague sync, would attention been be drawn to any places where the audio video sync is 1:1? Heavy sync isn't the natural state of a video, or the "most basic ability to be able to use" in a video. It's a vastly over-exposed technique that's vastly underestimated as well. Nobody delves into the possibilities of simple audio\visual sync because we assume it's at it's limit, and we've moved on to newer and greater things for "advanced" editors to use. People don't realize "editing" isn't synonymouswith "Sync"
I'm pretty sure that between the three of those snippets there's at least some possibility for