Assertion: saxophone's instrument | /r/HasProperty | invented
Facets:
value: during the 1970s
type: TEMPORAL
Source sentences:
text: The Hawaiian instrument, called a xaphoon, was invented during the 1970s and is also marketed as a "bamboo sax", although its cylindrical bore more closely resembles that of a clarinet, and its lack of any keywork makes it more akin to a recorder.
text: A C model soprano saxophone was available when the instrument was first invented, but was discontinued in favor of the B-flat model in 1940.