ody ▁of ▁the ▁challenge ▁phrase . ▁Once ▁they ▁are ▁finished , ▁the ▁order ▁is ▁revers ed , ▁and ▁the ▁men ▁will ▁issue ▁their ▁own ▁challenge ▁phrase ▁with ▁a ▁different ▁mel ody . ▁While ▁in ▁the ▁past ▁the ▁singing ▁was ▁un ac comp an ied , ▁it ▁is ▁common ▁today ▁for ▁the ▁sing ers ▁to ▁be ▁accompanied ▁by ▁instruments , ▁whether ▁traditional ▁Vietnam ese ▁instruments ▁or ▁modern ▁ones ▁such ▁as ▁electric ▁key boards . ▁ ▁There ▁are ▁a ▁huge ▁number ▁of ▁quan ▁h ọ ▁mel od ies , ▁with ▁thousands ▁of ▁different ▁songs ▁having ▁been ▁recorded ▁and ▁written ▁down ▁in ▁score ▁form . ▁A ▁simpler ▁variant ▁of ▁response ▁song , ▁allowing ▁spoken ▁responses ▁and ▁s ung ▁by ▁boys ▁and ▁girls ▁at ▁village ▁festiv als ▁is ▁tr ố ng ▁qu ân ▁singing . ▁ ▁References ▁ ▁External ▁links ▁Qu an ▁Ho , ▁folk ▁song , ▁MP 3 , ▁Video ▁Qu an ▁ho ▁MP 3 , ▁Video ▁N h ac ▁dan ▁ca ▁Dan ▁Ca ▁V iet ▁ ▁Category : Master pie ces ▁of ▁the ▁Or al ▁and ▁Int ang ible ▁Heritage ▁of ▁Human ity ▁Category : Sing ing ▁Category : F olk ▁music ▁gen res ▁Category : V ietnam ese ▁music ▁Category : B ắ c ▁Nin h ▁Province ▁Category : V ietnam ese ▁folk ▁music <0x0A> </s> ▁I rit ▁Lin ur ▁( , ▁born ▁ 1 9 6 1 ) ▁is ▁an ▁Isra eli ▁author . ▁ ▁Biography ▁I rit ▁Lin ur ▁was ▁married ▁to ▁ ▁Al on ▁Ben ▁David , ▁Senior ▁Def ense ▁Cor