THE WINDMILLS OF YOUR MIND.. by French composer Michel Legrand with English lyrics written by Americans Alan and Marilyn Bergman. The song was used as the theme for the 1968 film,The Thomas Crown Affair. The opening two melodic sentences were borrowed from Mozart’s second movement from his Sinfonia Concertante for Violin, Viola and Orchestra. It was performed by actor Noel Harrison who took the song to #8 in the UK Singles Chart, winning anAcademy Award for Best Original Song the same year. One of my absolute most haunting favourites.
 
https://www.youtube.com/watch?v=WEhS9Y9HYjU