Fritz Busch
The next decades featured various economic problems, which led to the resignation of 15 musicians in one season. In spite of this, the orchestra continued to attract notable musicians and conductors, such as Richard Burgin, who later became concertmaster for Serge Koussevitzky in Boston; Max Rostal; Ernst Glaser; Robert Soetens, for whom Sergei Prokofiev's 2nd Violin Concerto was written; and others who were driven out of Germany by the Nazi regime - Igor Stravinsky, Fritz Busch, Erich Kleiber, and Bruno Walter.