He parted with Dada in 1919 , when he and painter Hans Arp founded a Constructivist circle , Das Neue Leben .
Janco was a practitioner of Art Nouveau , Futurism and Expressionism before contributing his painting and stage design to Tzara 's literary Dadaism .
Janco parted with Dada in 1919 , when Janco and painter Hans Arp founded a Constructivist circle , Das Neue Leben .
Janco was a practitioner of Art Nouveau , Futurism and Expressionism before contributing his painting and stage design to Tzara 's literary Dadaism .