in the key of C Major

For the daily prompt thing I'm doing, I ended up going down a rabbit hole about windmill sails and came across this story of a miller who restored the last of what used to be many windmills--"the highest concentration of windmills in the Iberian peninsula"--on a mountain in Portugal. Here he is with his windmill in 2019:

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Photo by Maria Rebelo Photography; resized from the image at the blog post

He's using the mill to grind ancient wheat grains; he says ants prefer wheat grains that don't have pest...