Assertion: drum's head | /r/HasProperty | tunable
Facets:
value: by tightening the lacings
type: MANNER
value: readily
type: MANNER
Source sentences:
text: Lapped and laced heads are readily tunable by tightening the lacings or screws, and wooden wedges may be inserted between the shell and lacings to further increase the membrane’s tension and thus raise the pitch.