The Week in Arts: Lalah Hathaway, Clay Play and ‘Douglas’. Dancing, Mostly Mozart Festival, Comedy and Humor, BritBox LLC, Film Forum, Film at Lincoln Center, New Victory Theater, Peabody Essex Museum, Abraham, Kyle (1977- ), Baby Rose (Singer), Brown, Trisha, Gadsby, Hannah, Kuusisto, Pekka, Manville, Lesley, Douglas (Play)