Assertion: folk singer's song | /r/CapableOf | alternate with repeated text phrase
Facets:
Source sentences:
text: - the songs are in STROPHIC FORM performed with a typical West African practice known as CALL-AND-RESPONSE, in which the leading text lines of each verse, were sung by a single voice(CALL), alternating with a repeated text phrase, or REFRAIN(response) sung by the group behind the lead voice. -