<https://www.learnjazzstandards.com/category/ljs-podcast/learn-jazz-standards/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.learnjazzstandards.com/ljs-podcast/learn-jazz-standards/ljs-274-3-week-jazz-tune-by-ear-challenge-week-1/>