Wainwright Onstage

Loudon Wainwright III, the singer-songwriter whose memoir, “Liner Notes,” was published last week by Blue Rider Press, will perform “Surviving Twin” tomorrow and Saturday at 8 p.m. at Bay Street Theater in Sag Harbor. Mr. Wainwright has called the show, a theatrical hybrid of music, family photographs, and dramatic readings, “a posthumous collaboration” with his father, who was a columnist and editor for Life magazine. 

In addition to recording more than 26 albums, including the 2010 Grammy Award-winning “High, Wide & Handsome: The Charlie Poole Project,” he has appeared as an actor in films, on television, and Off Off Broadway. Tickets are $35 to $55.