Wertheim, Rosy [Rosalie] (Marie)
- Helen Metzelaar
(b Amsterdam, Feb 19, 1888; d Laren, May 27, 1949).Dutch composer. After gaining a piano teaching certificate in 1912 from the Koninklijke Nederlandse Toonkunstenaars Vereniging, she studied composition with Bernard Zweers and Sem Dresden. She also taught the piano and solfège at the Amsterdam Muzieklyceum. Deeply concerned about the social circumstances of the working classes, she gave piano lessons to poor children, conducted a children’s chorus in a working-class neighbourhood and financially supported a number of families. She also conducted the Jewish women’s chorus of the Religieus Socialistisch Verbond in Amsterdam. During World War I her song Neutraal was popular. She began her career writing mainly songs and choral works and after encountering the works of Debussy, Ravel and Stravinsky her music became increasingly Impressionistic. In 1929 she moved to Paris, where she studied with Louis Aubert. Until 1935 her home in Paris was a meeting-place for many composers, including Elsa Barraine, Arthur Honegger, Jacques Ibert, André Jolivet and Messiaen. After spending a year in Vienna, where she studied counterpoint with Karl Weigl, she went to the USA, where some of her works were performed by the Composers’ Forum Laboratory in New York. In ...