Franz Erhard Walther's Gelbmodellierung (Raya ƙirar Yellow, 1980-81) ɗaya daga cikin "tsarin bango" wanda yayi a tsakanin 1978 da 1986.
A cikin jerin, wannan aikin ya kasance ba kawai sabili da girman sa (mita 11 x 5).
A cikin haɗin keɓaɓɓe tsakanin zane-zane da sararin samaniya, Walther yana ɗaukar bango gidan kayan gargajiya azaman plinth na aikinsa, wanda masu kallo za su iya kusantarwa a cikin yanayin "kafin", "kusa da" ko "a ciki" waɗanda ke da mahimmanci ga mai zane.
Sai kawai a cikin ainihin yadda jama'a ke hulɗa ko zane-zane tare da zane-zane ne zane-zane da kansa ya kammala.
Sabunta gabatarwar wannan aikin, wanda mai zane kansa yake kirgawa a tsakanin manyan ayyukan sa, ana samun sa ne ta hanyar lamuni na dindindin daga Kerstin Hiller & Helmut Schmelzer Collection.
