ique , ▁directed ▁by ▁the ▁celebrated ▁mul atto ▁music ian , ▁Joseph ▁B ologne , ▁Che val ier ▁de ▁Saint - Ge org es . ▁ ▁Mov ements ▁ ▁The ▁work ▁is ▁in ▁standard ▁four ▁movement ▁form ▁and ▁scored ▁for ▁fl ute , ▁two ▁ob o es , ▁two ▁b asso ons , ▁horn s ▁and / or ▁tr ump ets , ▁timp ani , ▁continu o ▁( har ps ich ord ) ▁and ▁strings . ▁Early ▁conflic ting ▁manuscript ▁sources ▁make ▁the ▁exact ▁scoring ▁for ▁the ▁br ass ▁unclear . ▁Typ ically , ▁however ▁it ▁is ▁performed ▁with ▁both ▁horn s ▁and ▁tr ump ets . ▁ ▁Viv ace ▁ass ai , ▁ ▁Al leg retto , ▁ ▁in ▁double ▁variation ▁form . ▁Menu et ▁e ▁T rio , ▁ ▁Finale : ▁Viv ace , ▁ ▁Nick name ▁( The ▁Bear ) ▁The ▁sym phony ▁has ▁long ▁been ▁popular ly ▁referred ▁to ▁as ▁" the ▁Bear ". ▁As ▁with ▁the ▁nick names ▁of ▁all ▁Hay dn ' s ▁sym phon ies , ▁it ▁did ▁not ▁origin ate ▁with ▁the ▁composer . ▁Instead , ▁the ▁name ▁der ives ▁from ▁a ▁rec urr ing ▁feature ▁from ▁the ▁last ▁movement ▁( including ▁its ▁famous ▁opening ), ▁in ▁which ▁Hay dn ▁int im ates ▁the ▁ton ality ▁of ▁a ▁bag pip es ▁or ▁D ud els ack : ▁a ▁low ▁sust ained ▁dr one , ▁acc ent u ated ▁by ▁a ▁grace - note ▁on ▁the ▁down be at . ▁This ▁curious ▁ton ality ▁prompt ed