Assertion: country music | /r/CapableOf | migrate to fm
Facets:
value: from the am band
type: OTHER
Source sentences:
text: At this point, country music was mainly heard on rural AM radio stations; the expansion of FM was particularly helpful to country music, which migrated to FM from the AM band as AM became overcome by talk radio (the country music stations that stayed on AM developed the classic country format for the AM audience).