It is hard not to be moved by the singularly brilliant voice of Charles Mingus. In reinterpreting his tunes and those of other Black voices, Stephanie Nilles knows that she is privileged and remains sensitive. She also knows that the fight against racism is a universal cause and that the power of Mingus's work artistically assists that cause, thus the creation of her moving new recording, I Pledge Allegiance to the Flag - the White Flag.