About: http://webisa.webdatacommons.org/407726744

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I think you need some song examples of the features you mention, but i agree with all of your points.
http://www.w3.org/ns/prov#wasQuotedFrom	sputnikmusic.com