What nationality were Ida Georgina Moburg and Jean Sibelius?
Jean Sibelius Jean Sibelius ( ;    ), born Johan Julius Christian Sibelius (8 December 186520 September 1957), was a Finnish composer and violinist of the late Romantic and early-modern periods. He is widely recognized as his country's greatest composer and, through his music, is often credited with having helped Finland to develop a national identity during its struggle for independence from Russia.
Anja Silja Anja Silja Regina Langwagen (] , born April 17, 1940 in Berlin) is a German soprano who is known for her great abilities as a singing-actress and for the vastness of her repertoire.