My brother David, who lives in Paris, took this photograph during a trip he made to Sardinia after Christmas. His email subject line read “Azure,” which immediately brought to mind Duke Ellington’s song of that name. Ellington described Azure as “a little dulcet piece which portrays a blue mood.” Blue was Ellington's favorite color. When his autobiography, Music Is My Mistress, was published in 1973, its dust jacket was brown. That had been his least favorite since 1935, for he was wearing a brown suit on the day his mother died.