Assertion: marimba's bar | /r/HasProperty | rotated to vertical position
Facets:
value: from a horizontal position
type: OTHER
Source sentences:
text: In addition to being played with mallets in the conventional way (as in the playing of a marimba or vibraphone), the marimbaphone was designed so that its bars could be rotated from a horizontal position to a vertical position, allowing them to more easily be played with a bow.