Maurice Ravel abandoned an orchestration of a Spanish composer’s work when he found out it had copyright complications. He instead started developing a theme based on Spanish dance music that he found had an “insistent quality”. With its much-repeated rhythm and theme, Boléro became one of Ravel’s best-known works. In 15 days it joins the US public domain in several versions published in 1929, for piano solo, piano duet, symphonic orchestra, and jazz orchestra. #PublicDomainDayCountdown