Assertion: tremolo's hole | /r/HasAspect | two reeds
Facets:
value: typically
type: DEGREE
value: for each note
type: PURPOSE
Source sentences:
text: Each hole has two reeds, tuned slightly apart.
text: Typically each hole has two reeds for each note, tuned to one octave of each other.
text: Each hole has two reeds, tuned slightly apart.