It’s not every day that lifelong Wisconsin farmers take time out during the frenetic harvest season to do pirouettes and turns in their tractors like so many John Deere Baryshnikovs.

“The Hay Rake Ballet” in an alfalfa field — set to opera music in front of a rapt crowd who oohed and aahed at every lift of the rakes used to move hay into rows — was a hit of the Farm/Art DTour, a 10-day, 50-mile self-guided driving tour of large-scale art installations and “pasture performances” along the pristine, hilly back roads of rural Sauk County, Wis.

Held every other October, the DTour draws more than 20,000 “D-Tourists” from Madison, Milwaukee and beyond. They come to soak up art in surprising contexts — a screaming pink abstract deer blind hoisted above a corn field, for instance, or a plucky dragon concealing a 250-foot-long irrigation system.

“I think it’s neat that urban people get a kick out of what we see every day,” said Andy Enge, a dairy farmer and a star of the ballet, in which three tractors twirled around each other in a pas de trois.

His 93-year-old father, Maurice, saw it differently. “If a man drove like that out in the hayfields, I’d fire them!” he said.