Nyorai kupfuurira kweiyi ndima - Pashure pa1936, zvakare nokuda kwezvikonzero zvemari, akaedza kuzvisimbisazve amene nenziyo dzetoni kuti awanezve nzvimbo. Akabvisa kuita kwake "Zvikamu zviviri zveClarinet nePiano" (1931) muna 1937 paWorld Music Days yeInternational Society for New Music (IGNM). Zvisinei, akanga ane "Zvidimbu Zvitatu zveOrchestra yeString" (c. 1936/37) yakatambwa pachiitiko che "Permanent Council for the International Cooperation of Composers", sangano reNational Socialist-rinotungamirwa ne IGNM, muWinterthur. Muna 1940, "purogiramu yeballet" yake "Andreasnacht" yakatanga kuratidzwa muEssen pasi paWinfried Zillig - kunyange zvazvo mimhanzi, maererano naZillig, "yakaratidzika zvikuru sejazi", kuita kwacho kwakabudirira. Muna 1941, akaendeswa kuWehrmacht kunochengetedza vasungwa vehondo veBritain ndokuendeswa kuPoznań. Ikoko, akanyora "Kinderstücke" yepiyano uye serenade (yakarasika). Nguva pfupi hondo isati yapera muna 1945, akaurayiwa nebhomba reSoviet panguva yeHondo yePoznań
. Akanga ava nemakore 43.