Cheers for Pearl Cleage"and Keen Company
In today's Wall Street Journal drama column I review the New York premiere of Pearl Cleage's Blues for an Alabama Sky. Here's an excerpt. *  *  * It's February"or, as it's known in the theater business, August Wilson Month. That's a sly reference to the fact that February also happens to be Black History Month, the time of year when theater companies with white artistic directors are notorious for goin…