Assertion: harpsichord's manual | /r/CapableOf | arrive on french harpsichords
Facets:
value: a third
type: TEMPORAL
value: in the 17th century
type: TEMPORAL
Source sentences:
text: When a second manual arrived on French harpsichords in the 17th century (and, later, a third), it was possible to assign each keyboard its own choir, so each register could be controlled independently.