Assertion: piano's note | /r/HasProperty | different
Facets:
value: in pitch
type: LOCATION
value: slightly
type: DEGREE
value: for every piano
type: OTHER
Source sentences:
text: Fine piano tuning requires an assessment of the vibration interaction among notes, which is different for every piano, thus in practice requiring slightly different pitches from any theoretical standard.
text: When two notes, which are slightly different in pitch, are played simultaneously, a resultant modulation can be perceived as a slow periodic change in volume or timbre.