Assertion: blues | /r/CapableOf | give beginning
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Source sentences:
text: A strain of country blues all its own, Memphis blues gives the rise of two distinct forms: the jug band (playing and singing a humorous, jazz-style of blues played on homemade instruments) and the beginnings of assigning parts to guitarists for solo (lead) and rhythm, a tradition that is now part and parcel of all modern day blues-and rock 'n' roll-bands.