About: http://webisa.webdatacommons.org/61138504

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	There is an interview with Phil ca. 1971 and he talks about the concept, including the idea of having wired frets that allowed pressure on the frets to be translated to frequency of a filter.
http://www.w3.org/ns/prov#wasQuotedFrom	rukind.com