In his new comedy-drama To My Girls, playwright JC Lee adds to a subgenre of plays about gay gatherings in which groups of friends thrash out problems and settle old scores with comic bitchiness. Mart Crowley’s The Boys in the Band is the forerunner of them all; later touchstones include Kevin Elyot’s My Night With Reg, Chuck Ranberg’s End of the World Party and Terrence McNally’s Love! Valour! Compassion! Lee’s To My Girls, under the direction of Stephen Brackett, is a respectable entry, reflecting a sea change in racial politics and behavior.