▁During ▁this ▁period , ▁he ▁altern ated ▁between ▁reading ▁Henry ▁IV , ▁Part ▁I ▁and ▁an ▁edition ▁of ▁John ▁Play ford ' s ▁The ▁English ▁Dan cing ▁Master , ▁as ▁well ▁as ▁folk ▁mel od ies ▁collected ▁by ▁Cec il ▁Sh arp ▁and ▁others . ▁Hol st ▁noticed ▁that ▁the ▁rh ythm ▁and ▁met re ▁of ▁Shakespeare ' s ▁lines ▁matched ▁the ▁t unes ▁in ▁the ▁Play ford , ▁as ▁well ▁as ▁the ▁t unes ▁that ▁Sh arp ▁and ▁others ▁had ▁collected . ▁He ▁then ▁decided ▁to ▁set ▁a ▁number ▁of ▁those ▁mel od ies ▁to ▁a ▁story ▁assemble d ▁from ▁episodes ▁set ▁at ▁the ▁Bo ar ' s ▁Head ▁Inn ▁from ▁the ▁two ▁parts ▁of ▁Henry ▁IV . ▁ ▁Three ▁of ▁the ▁mel od ic ▁pass ages ▁are ▁original , ▁including ▁a ▁rec itative ▁for ▁Prince ▁Hal ▁and ▁a ▁setting ▁for ▁the ▁son net s . ▁Otherwise , ▁Hol st ▁de vised ▁his ▁score ▁from ▁re working ▁the ▁collected ▁folk ▁t unes . ▁Im ogen ▁Hol st ▁summar ised ▁the ▁folk ▁t unes ▁which ▁her ▁father ▁used ▁in ▁the ▁score ▁as ▁follows : ▁ ▁John ▁Play ford , ▁The ▁English ▁Dan cing ▁Master : ▁ 2 8 ▁country ▁dance ▁t unes ▁ ▁Cec il ▁Sh arp , ▁published ▁ed itions : ▁ 4 ▁mor ris ▁t unes , ▁ 1 ▁traditional ▁country ▁dance ▁ ▁Ch app ell , ▁Popular ▁Music ▁of ▁the ▁Old en ▁Time : ▁ 3 ▁ball ads ▁ ▁G . B . ▁Gard iner , ▁manuscript ▁collection : ▁