Assertion: percussion instrument's sound | /r/MadeOf | strong overtones
Facets:
value: at irrational ratios to its fundamental
type: OTHER
value: unlike a vibrating string
type: OTHER
Source sentences:
text: The sound of a freely resonating membrane such as a drum head, for example, contains strong overtones at irrational ratios to its fundamental, unlike a vibrating string whose overtones are at simple whole-number ratios to the fundamental.