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Tunings (whether by key shift or by reference frequency or whatever other means) can evoke a different sort of feeling and mood in music IMHO. Music is such a personal thing in so many ways, so even though the "beneficial healing energy" / "pure tone of math fundamental to nature" thing is kind of BS, I'll allow a little out there mystical pseudobabble. :) It's just a pity in a way that the mystical BS focuses only o…
> There is no science that can explain this sort of thing that I know of, and I fully expect that others would have different interpretations. The article had a pretty good explanation: that strings sound different at different tensions. Musical instruments tuned lower would sound darker, mellower, and "looser" than those tuned higher. The instruments would probably feel a little different to the musicians, who would…
On an FFT graph, you'll have the same fundamental and a very similar next few partials, but eventually you'll see (and hear) the results of the different tensions. Those differences represent what people like and don't like about different tunings -- nothing to do with the slightly different pitch between 440/442/438/432/etc!