▁in ▁F ▁major ▁with ▁a ▁Cred o ▁in ▁D ▁major , ▁probably ▁a ▁second ▁Mass ▁in ▁G ▁major , ▁one ▁Te ▁De um ▁and ▁five ▁ps al ms . ▁ ▁Although ▁two ▁of ▁his ▁earliest ▁bi ograph ers , ▁Mat tei ▁and ▁Vill ar osa , ▁give ▁ 1 7 4 8 ▁as ▁the ▁year ▁when ▁J omm elli ▁gave ▁up ▁his ▁employ ment ▁in ▁Ven ice , ▁his ▁last ▁compos itions ▁for ▁the ▁In cur ab ili ▁are ▁from ▁ 1 7 4 6 . ▁He ▁must ▁have ▁left ▁Ven ice ▁at ▁the ▁very ▁end ▁of ▁ 1 7 4 6 ▁or ▁at ▁the ▁beginning ▁of ▁the ▁following ▁year , ▁because ▁on ▁ 2 8 ▁January ▁ 1 7 4 7 ▁J omm elli ▁was ▁st aging ▁at ▁the ▁Argentina ▁theatre ▁in ▁Rome ▁his ▁first ▁version ▁of ▁" Did one ▁ab band on ata ", ▁and ▁in ▁May ▁at ▁San ▁Carlo ▁in ▁Nap les ▁a ▁second ▁version ▁of ▁" E um ene ". ▁ ▁Rome ▁It ▁was ▁the ▁need ▁of ▁an ▁active ▁chap el ▁master ▁for ▁the ▁bas il ica ▁of ▁St . ▁Peter ' s ▁in ▁prepar ing ▁for ▁the ▁J ub ile e ▁festival ▁year ▁that ▁brought ▁both ▁J omm elli ▁and ▁Dav ide ▁Pere z ▁to ▁Rome ▁in ▁ 1 7 4 9 , ▁a ▁year - long ▁comm em oration ▁celebrated ▁by ▁the ▁Roman ▁Catholic ▁Church ▁every ▁fifty ▁years , ▁so ▁this ▁was ▁an ▁important ▁occasion ▁for ▁the ▁Roman ▁arist ocracy ▁to ▁show ▁off . ▁J omm elli