▁space ▁in ▁the ▁cup ola ▁was ▁used ▁in ▁the ▁ 1 9 6 0 s ▁for ▁opera ▁re he ars als , ▁and ▁in ▁the ▁ 1 9 8 0 s ▁was ▁rem od elled ▁into ▁two ▁flo ors ▁of ▁dance ▁re he ars al ▁space . ▁The ▁lower ▁floor ▁consists ▁of ▁the ▁S alle ▁N ure ï ev ▁( N ure ye v ) ▁and ▁the ▁S alle ▁Bal anch ine , ▁and ▁the ▁upper ▁floor , ▁the ▁S alle ▁Pet ip a . ▁ ▁Organ ▁The ▁grand ▁organ ▁was ▁built ▁by ▁Arist ide ▁C ava illé - Coll ▁for ▁use ▁during ▁lyr ical ▁works . ▁It ▁has ▁been ▁out ▁of ▁service ▁for ▁several ▁dec ades . ▁ ▁R estaur ant ▁ ▁G arn ier ▁had ▁originally ▁planned ▁to ▁install ▁a ▁restaurant ▁in ▁the ▁opera ▁house ; ▁however , ▁for ▁budget ary ▁reasons , ▁it ▁was ▁not ▁completed ▁in ▁the ▁original ▁design . ▁ ▁On ▁the ▁third ▁attempt ▁to ▁introduce ▁it ▁since ▁ 1 8 7 5 , ▁a ▁restaurant ▁was ▁opened ▁on ▁the ▁eastern ▁side ▁of ▁the ▁building ▁in ▁ 2 0 1 1 . ▁L ' Op éra ▁R estaur ant ▁was ▁designed ▁by ▁French ▁architect ▁Od ile ▁Dec q . ▁The ▁chef ▁was ▁Christ ophe ▁Ari bert ; ▁in ▁October ▁ 2 0 1 5 , ▁Gu ill ame ▁T ison - M alth é ▁became ▁the ▁new ▁head ▁chef . ▁The ▁restaurant , ▁which ▁has ▁three ▁different ▁spaces ▁and ▁a ▁large ▁outside ▁terra ce , ▁is ▁accessible ▁to