Assertion: piano's hammer | /r/HasProperty | released
Facets:
value: from the key
type: OTHER
value: before hitting the string
type: TEMPORAL
Source sentences:
text: Even the subtle click feel when the “hammer” is released from the key (escapement) is reproduced.
text: Single escapement is what allows hammer to be released (escape) from the influence of the key and the rest of the action.
text: For this reason, all piano actions have some kind of escapement mechanism for each key, allowing the hammer to be released from the key just before hitting the string .