<https://drbanjo.com/ask-dr-banjo/jamming/76-remembering-new-chord-progressions-while-jamming/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://drbanjo.com/ask-dr-banjo/jamming/76-remembering-new-chord-progressions-while-jamming/>