ARTHUR — As he weaved past the stuffed animals, designer handbags and expensive paintings in his art gallery in downtown Arthur, Jerry Winters posed a question. “Do you want me to play something for you?” he asked. Dressed in a navy blue blazer, pink shirt, orange-and-blue plaid pants and a gold paisley tie with a matching pocket square, his style directly contrasts with the small town known for its significant Amish and Mennonite community. Minutes earlier, a horse and buggy passed by his store, which is packed with expensive artwork, some worth as much as six figures, he said. The 80-year-old sat down at his Steinway & Sons upright piano…