John Williams composed the five-tone motif for Steven Spielberg's Close Encounters of the Third Kind, released in 1977, where scientists use the musical phrase to communicate with an alien mothership. The simple melody became one of cinema's most quoted musical ideas and was widely parodied and referenced in later films, cartoons and commercials. Online it survives as shorthand for alien contact, often titled in Portuguese as contatos imediatos de terceiro grau, and creators still drop the short clip to signal a mysterious or otherworldly moment.