That's interesting. I've always suspected that the rules/heuristics governing intonation for voice, wind and (unfretted) string instruments is free form, depen

That's interesting. I've always suspected that the rules/heuristics governing intonation for voice, wind and (unfretted) string instruments is free form, depending on whether they're carrying the melody or playing in the "corps" of small or large ensembles. This vid, by (I think) a respected violin prof addresses this: carrying melodies in Pythagorean, ensemble playing in Just intonation, and ET if you have to (playing with piano). https://www.youtube.com/watch?v=QaYOwIIvgHg https://www.youtube.com/watch?v=QaYOwIIvgHg