1934, Concert at the Amsterdam Olympic Stadium conducted by Willem Mengelberg
dirigent: Willem Mengelberg (1871-1951) (en)
Documentary in which Mengelberg discusses the course of events before the outdoor concert on 2 June 1934 at the Amsterdam Olympic Stadium. Mengelberg notes that the men in the orchestra as well as the choir may have a drink to stay warm, but not the women in the choir "because they might get too enthusiastic".