Assertion: marimba's bar | /r/CapableOf | engage long felt pad
Facets:
value: against the naturals
type: TRANSITIVE-OBJECT
value: against the sharps
type: TRANSITIVE-OBJECT
Source sentences:
text: A rigid bar beneath the center of the instrument is pressed upward by an adjustable spring and engages a long felt pad against the sharps and the naturals.