About: http://webisa.webdatacommons.org/132818519

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	Consider his plans for the viola organista, a keyboard instrument containing a system of revolving wheels, strings and other machinery to create a kind of cello that can be played with a keyboard.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com