Assertion: piano's string | /r/HasProperty | hit with hammer
Facets:
Source sentences:
text: definitely percussion as said before can't remember who by but the strings are hit with hammers so its percussion and technically there is no such thing as a keyboard family
text: Acoustic pianos, on the other hand, create their sounds in air, by means of strings being struck by hammers and a wooden soundboard that serves to amplify the sound so that it can be easily heard, without the benefit of any electronic components, and therefore without the need for electricity, speakers or headphones.
text: When the pedal is pressed, all the dampers are detached from the strings, so, when a string is hit by the hammer it continues to vibrate until you release the pedal.