About: http://webisa.webdatacommons.org/420448535

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	Feedback is a major problem caused by a variety of sources, including microphone placement and overdriven PAs and amps.
http://www.w3.org/ns/prov#wasQuotedFrom	samedaymusic.com