Give us racial harmony In the 1970s, most orchestras adopted the practice of blind auditions: Candidates play from behind screens [...] In the final round, once they have been winnowed down to three or four, the screens often come down so that the music director and the panel of orchestra members can meet their potential colleagues. But would a more multihued orchestra also be a more multitalented one? Absolutely, argues Aaron Dworkin, founder of the 10-year-old Michigan-based Sphinx Organization, dedicated to advancing the cause of minorities in classical music. Dworkin argues that a greater variety of musicians would bring more...