About: http://webisa.webdatacommons.org/291123602

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In 1926, he joined the German Communist party, thereafter producing protest songs and other music expressive of left-wing ideals, and began a collaboration with Bertolt Brecht.
http://www.w3.org/ns/prov#wasQuotedFrom	infoplease.com