True. In 1977, a recording of "Johnny B. Goode" by Chuck Berry was included in a gold disc sent to space with the Voyager mission. The idea was that maybe one day alien life would find this record and learn something about us.
NASA has launched two spacecraft to explore Jupiter, Saturn and beyond. And to represent the diversity of life on Earth each one carried a 12-inch gold-plated record that contained chosen musics, sounds and images. The late cosmologist Carl Sagan chaired a committee that selected 90 minutes of music from around the world.