About: http://webisa.webdatacommons.org/258077235

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	Firstly, the key of the overture is E flat major, which acts as a kind of central key throughout the entire opera.
http://www.w3.org/ns/prov#wasQuotedFrom	servantsofthelight.org