<https://forum.orbxdirect.com/topic/219365-cover-versions-of-a-song-other-than-the-original-performer/#comment-1843291>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.orbxdirect.com/topic/219365-cover-versions-of-a-song-other-than-the-original-performer/>