Funny thing happened on the way to retiring by Douglas J. Keating
CAMBRIDGE, Mass. - For his swan song as artistic director of the highly regarded American Repertory Theatre, which he cofounded 22 years ago, Robert Brustein envisioned a light entertainment that would send him out on a happy note while displaying the talents of artists he had worked with over the last two decades. What he settled on was an original musical comedy based on Lysistrata, the ancient Greek play about a w…