Each of the two Voyager spacecraft --- the first human-made objects to enter interstellar space --- carries a "Golden Record" into the void.
These are phonograph records that contain a wide variety of sounds (opera, jazz, tribal drumming...) and images selected to portray the diversity of life and culture on Earth.
Each spacecraft also carries a stylus; and the records are embossed with visual instructions on how to construct a playback device so that intelligent extraterrestrial life form, or future humans, may access the records' contents.
The embossing also includes a map showing where Earth is, using prominent pulsars as reference points.
The Infinite Voyager:The Golden Record site includes a link to the music, so you can hear what's winging its way into deep space. Take a listen!