Assertion: french horn | /r/HasProperty | based upon a rotary-valve system
Facets:
Source sentences:
text: The French Horn is based upon a rotary-valve system and has an extensive range from a low C two octaves below middle C and extending right up to a C two octaves above middle C.
text: The French Horn is based upon a rotary-valve system and has an extensive range from a low C two octaves below middle C and extending right up to a C two octaves above middle C.