Assertion: double reed | /r/HasProperty | inclosed in the keys of the tenor or bass
Facets:
Source sentences:
text: The double reed was inclosed in a pirouette, or cup, and the keys of the tenor or bass, just the same as with similar flutes and bombards, were hidden by a barrel-shaped cover, pierced with small openings, apparently intended to modify the too searching tone as well as to protect the touch pieces which moved the keys.