A splendid DVD from Deutsche Grammophon, Rafael Kubelík: A Portrait, reminds us that multiple tyrannies can govern a conductor’s life. Kubelík (1914 –1996) was a mightily gifted Bohemian-born conductor, scion of a legendary musical family (his father was the superstar violinist Jan Kubelík). Rafael Kubelík was music director of the Brno Opera when the Nazis shut the company down in 1941. A year later they executed the Opera’s administrative director, Václav Jiøíkovský (1891-1942), who had smuggled Jews out of Occupied Prague. Small wonder that Kubelík states in a 1970’s documentary (which is reprinted along with brilliant performances of Beethoven, Mozart, and Bruckner on the new DVD), “A conductor should be a guide, not a dictator. I could never stomach dictatorships.” When he was named wartime conductor of the Czech Philharmonic, he declined to perform Wagner, and would not give German notables the Nazi salute as required, nearly causing him to be arrested. A stunning interpreter of Mozart, Beethoven, Smetana, and Dvoøák, Kubelík helped establish the Prague Spring Festival in 1946, but finally was driven from his homeland by the 1948 Communist coup.