Assertion: drum's head | /r/CapableOf | stay at pitch
Facets:
Source sentences:
text: In the balanced action system, a spring or hydraulic cylinder is used to balance the tension on the head so the pedal will stay in position and the head will stay at pitch.
text: system, a spring or hydraulic cylinder is used to balance the tension on the head so the pedal will stay in position and the head will stay at pitch.