A song with neither a known title, artist or record date, best known online as The Most Mysterious Song on the Internet, was recorded from a Norddeutscher Rundfunk broadcast at an unknown date, widely believed to be 1983 or 1984. Since 2019, this song has been the subject of a viral Internet phenomenon, with users of sites such as Reddit and Discord working together to try and find it. The song audio has been found, however, the sound quality is poor and little other information regarding the song has been found. It can be heard here: https://www.youtube.com/watch?v=91kaTnzLAPA

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