Cassandra Wilson graced the Pabst Theatre stage on Sunday evening, March 21. The most inspiring vocalist over the last decade, she has a brilliance no one can deny. The latest group she has assembled is a wonderful collection of musicians who create a full, almost orchestral, sound that is the perfect complement to her voice. Her set began with a song from her 1993 release Blue Light Til Dawn, entitled Children of the Night, a stirring, almost haunting number that set the tone for the evening