About: http://webisa.webdatacommons.org/446454629

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	Typical fixed pitch sources used in this manner include pitch pipes, tuning forks, pianos and other musical instruments, electronic tone generators and sound recordings.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au