Assertion: french horn's sound | /r/CreatedBy | french horn
Facets:
value: by blowing fast air
type: MANNER
Source sentences:
text: The musical sounds produced by the French horn is always pleasing, the air passes through the conical bores and rotary valves to come out through the flared bell.
text: Sound is produced on the French Horn by blowing fast air between the firmly pressed lips.