Assertion: harpsichord's set | /r/HasProperty | fastened to pin
Facets:
Source sentences:
text: These instruments commonly had three sets of strings, two unison sets at normal pitch (called eight-foot pitch because the low C at this pitch is produced by an organ pipe eight feet long) and a third set of shorter strings tuned an octave higher, or at four-foot pitch; this shorter set passed over its own bridge and was fastened to pins driven through the soundboard into a rail fixed to its underside.