Assertion: german concertina | /r/HasAspect | more than one reed per note
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: German concertinas also sometimes have more than one reed per note, which produces a vibrato effect if their tuning differs slightly .
text: Sometimes, a German concertina may have more than one reed per note, thus allowing a musician to produce a vibrato effect as well.