Assertion: kettle's handle | /r/CapableOf | alter the tension
Facets:
value: in the head
type: LOCATION
Source sentences:
text: Until the late 19th century, timpani were hand-tuned; that is, there was a sequence of screws with T-shaped handles, called taps, which altered the tension in the head when turned by players.
text: Until the late 19th century, timpani were hand-tuned; that is, there was a sequence of screws with T-shaped handles, called taps, which altered the tension in the head when turned by players.