Assertion: percussion instrument's sound | /r/CapableOf | hit string
Facets:
value: on the trumpet mouthpiece
type: LOCATION
Source sentences:
text: For instance, if one takes away the attack from the sound of a piano or trumpet, it becomes more difficult to identify the sound correctly, since the sound of the hammer hitting the strings or the first blast of the player's lips on the trumpet mouthpiece are highly characteristic of those instruments.