▁student ▁of ▁Pal estr ina , ▁but ▁there ▁is ▁no ▁document ary ▁evidence ▁of ▁this ; ▁sty list ic ▁similar ities ▁between ▁their ▁music , ▁and ▁an ▁obvious ▁close ▁career ▁association , ▁make ▁it ▁a ▁reasonable ▁assumption . ▁ ▁Not ▁much ▁is ▁known ▁about ▁Giov annel li ' s ▁life ▁until ▁ 1 5 8 3 ▁when ▁he ▁became ▁ma estro ▁di ▁c app ella ▁at ▁S ▁Luigi ▁dei ▁Frances i , ▁a ▁post ▁which ▁he ▁held ▁until ▁ 1 5 9 1 , ▁at ▁which ▁time ▁he ▁went ▁to ▁the ▁Colleg io ▁German ico . ▁ ▁In ▁addition ▁to ▁these ▁posts ▁he ▁was ▁ma estro ▁di ▁c app ella ▁for ▁Duke ▁Giovanni ▁Ang elo ▁of ▁Al ta em ps , ▁at ▁his ▁private ▁chap el , ▁probably ▁concurrent ly ▁with ▁his ▁other ▁jobs . ▁ ▁He ▁also ▁sang , ▁and ▁served ▁in ▁various ▁administrative ▁posts . ▁ ▁Giov annel li ' s ▁most ▁important ▁appointment ▁was ▁as ▁the ▁replacement ▁for ▁Pal estr ina ▁as ▁the ▁ma estro ▁di ▁c app ella ▁at ▁the ▁Julian ▁Chap el ▁at ▁St . ▁Peter ' s , ▁on ▁ 1 2 ▁March ▁ 1 5 9 4 , ▁a ▁position ▁which ▁he ▁held ▁until ▁ 1 5 9 9 , ▁when ▁he ▁became ▁a ▁singer ▁at ▁the ▁S ist ine ▁Chap el . ▁ ▁In ▁ 1 6 1 4 ▁he ▁became ▁ma estro ▁di ▁c app ella ▁at ▁the ▁S ist ine ▁Chap el , ▁and ▁he ▁retired ▁in ▁ 1 6 2 4 .