▁of ▁his ▁time , ▁not ably ▁during ▁the ▁beg inn ings ▁of ▁the ▁folk ▁music ▁rev ival ▁in ▁the ▁ 1 9 3 0 s ▁and ▁early ▁ 1 9 4 0 s . ▁ ▁The ▁American ▁folk ▁music ▁rev ival ▁was ▁a ▁phenomen on ▁in ▁the ▁United ▁States ▁that ▁began ▁during ▁the ▁ 1 9 4 0 s ▁and ▁pe aked ▁in ▁popular ity ▁in ▁the ▁mid - 1 9 6 0 s . ▁Its ▁roots ▁went ▁earlier , ▁and ▁perform ers ▁like ▁B url ▁I ves , ▁Wo ody ▁Gut hr ie , ▁Le ad ▁Bel ly , ▁and ▁Oscar ▁Brand ▁had ▁enjoyed ▁a ▁limited ▁general ▁popular ity ▁in ▁the ▁ 1 9 3 0 s ▁and ▁ 1 9 4 0 s . ▁The ▁rev ival ▁brought ▁forward ▁musical ▁styles ▁that ▁had , ▁in ▁earlier ▁times , ▁contributed ▁to ▁the ▁development ▁of ▁country ▁& ▁western , ▁jazz , ▁and ▁rock ▁and ▁roll ▁music . ▁ ▁African - American ▁music ▁S la very ▁was ▁introduced ▁to ▁the ▁British ▁colon ies ▁in ▁the ▁early ▁ 1 7 th ▁century . ▁The ▁ancest ors ▁of ▁today ' s ▁African - American ▁population ▁were ▁brought ▁from ▁hundreds ▁of ▁tribes ▁across ▁West ▁Africa , ▁and ▁brought ▁with ▁them ▁certain ▁tra its ▁of ▁West ▁African ▁music ▁including ▁call ▁and ▁response ▁vocals ▁and ▁complex ▁rh yth mic ▁music , ▁as ▁well ▁as ▁sync op ated ▁be ats ▁and ▁sh ifting ▁acc ents . ▁The ▁African ▁musical ▁focus ▁on ▁rh yth mic ▁singing ▁and ▁dan cing ▁was ▁brought