Comment Re:Scientists rediscover temperament? (Score 1) 73
Thank you for saying approximately equal. The well temperaments in use were reasonably close to 12-ET, in the sense that you could play a well-tempered instrument and a 12-ET fretted instrument, and they'd be within 10 cents or so of each other even in the worst cases. This meant no key was so bad as to be unusable, but they still did have characteristic colors and grinds to them.
I would recommend you look up Stanley Lehman and his paper on what Bach's intended tuning was, based on the squiggles on the cover of the WTC. It's quite similar to other well temperaments in its non-ET-ness, but of course they all spread the color around a little differently. How much differently? I have an entire Bandcamp "album" dedicated to that question: https://mal-2.bandcamp.com/album/gonzo-lullaby-temperament-tests. The one I just talked about is, not too surprisingly, called the "Bach squiggle" tuning.