e ▁Austria ▁and ▁was ▁granted ▁a ▁vis a ▁by ▁the ▁French ▁government ▁and ▁he ▁settled ▁in ▁a ▁hotel ▁room ▁in ▁Paris . ▁He ▁adapted ▁instrument al ▁works ▁for ▁orch est ras ▁and ▁received ▁a ▁commission ▁from ▁a ▁conduct or ▁at ▁the ▁Zürich ▁Opera ▁House ▁for ▁a ▁work ▁to ▁be ▁performed ▁under ▁the ▁latter ' s ▁name . ▁He ▁completed ▁this ▁work , ▁including ▁all ▁orch est ral ▁and ▁voice ▁parts , ▁in ▁just ▁three ▁weeks , ▁and ▁without ▁the ▁benefit ▁of ▁a ▁piano . ▁ ▁After ▁the ▁German ▁invasion ▁of ▁Paris ▁in ▁ 1 9 4 0 , ▁Be er , ▁who ▁was ▁en rolled ▁in ▁the ▁Polish ▁army - in - ex ile , ▁tried ▁to ▁reach ▁his ▁troops ▁in ▁England . ▁But ▁the ▁last ▁boat ▁from ▁Bor de aux ▁was ▁gone . ▁He ▁then ▁escaped ▁to ▁Nice ▁in ▁the ▁south ▁of ▁France ▁where ▁he ▁stayed ▁until ▁the ▁end ▁of ▁the ▁war . ▁ ▁While ▁continu ing ▁to ▁ar range ▁orch est ral ▁works , ▁he ▁also ▁composed ▁his ▁third ▁major ▁work , ▁Str ad ella ▁in ▁V ened ig ▁based ▁on ▁Aless andro ▁Str ad ella ' s ▁episode ▁in ▁Ven ice . ▁When ▁the ▁Naz is ▁completed ▁their ▁occupation ▁of ▁France ▁in ▁ 1 9 4 2 , ▁Be er ▁had ▁to ▁go ▁into ▁hiding , ▁using ▁the ▁name ▁" Jean ▁Joseph ▁B ér ard ". ▁During ▁this ▁time , ▁his ▁father , ▁his ▁mother ▁and ▁his ▁sister , ▁who ▁had ▁remained ▁in ▁L viv , ▁were ▁caught ▁in ▁the