▁ ▁The ▁roof ▁in ▁the ▁eastern ▁( and ▁older ) ▁part ▁of ▁the ▁church ▁is ▁supported ▁by ▁rib ▁v ault s ▁while ▁the ▁western ▁part ▁has ▁li erne ▁v ault s . ▁ ▁The ▁wall ▁behind ▁the ▁cho ir ▁is ▁pier ced ▁with ▁three ▁high ▁pointed ▁arch ▁windows . ▁ ▁The ▁windows ▁are ▁filled ▁with ▁ 1 5 th ▁century ▁st ained ▁glass ▁which ▁dep ict ▁events ▁from ▁the ▁life ▁of ▁St . ▁Bened ict . ▁ ▁The ▁nave ▁and ▁cho ir ▁together ▁are ▁ ▁long , ▁ ▁wide ▁and ▁ ▁high . ▁ ▁Or g ans ▁ ▁Main ▁organ ▁This ▁Bar o que ▁organ ▁was ▁built ▁by ▁Jacques ▁Bes an con ▁above ▁the ▁western ▁portal . ▁ ▁It ▁was ▁first ▁played ▁on ▁ 2 0 ▁September ▁ 1 7 8 3 ▁and ▁was ▁dam aged ▁in ▁the ▁ 2 5 ▁July ▁ 1 8 5 5 ▁earth qu ake . ▁ ▁Tw enty ▁years ▁later , ▁in ▁ 1 8 7 5 , ▁it ▁was ▁finally ▁rep a ired ▁and ▁put ▁back ▁in ▁service . ▁ ▁It ▁was ▁rep a ired , ▁clean ed ▁and ▁partly ▁re built ▁in ▁ 1 9 0 2 ▁and ▁again ▁in ▁ 1 9 4 3 . ▁ ▁At ▁that ▁time , ▁the ▁organ ▁had ▁more ▁than ▁ 5 5 ▁registers , ▁distributed ▁over ▁three ▁manual s ▁and ▁ped als . ▁ ▁In ▁ 2 0 1 1 ▁it ▁was ▁rep a ired ▁by ▁the ▁Met z ler ▁Or gel ▁company ▁and ▁put ▁back ▁into ▁service