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Using the fundamental #physics phenomenon of #beats, trial & error, and unmatched metallurgy & bell casting skills, the Chinese assembled 12-tone chromatic bronze bell sets like below, 2000-3600 yrs ago.

Essentially 1st uncovering the mass relation to tone as well.

en.wikipedia...
? TBD
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@malthusjohn.bsky.social · 7d · Bluesky
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