MUSIC: Joe Purdy @ Club Helsinki, Hudson. A self-described storytelling troubadour, the plaintive-voiced folk-rock songwriter has recorded a dozen albums in eight years. His songs have been featured on TV’s “Grey’s Anatomy,” “Lost” and “House M.D.” Purdy’s distinctive voice and songwriting talent have won the endorsement of such prominent fans as the Who’s Pete Townshend and Steve Earle. With Brian Wright. 8pm. $22.
CABARET: Fyvush Finkel @ Barrington Stage Company’s Mr. Finn’s Cabaret, Pittsfield. The Emmy Award-winning (“Picket Fences”) stage and screen veteran actor celebrates the great songs and humor of show business. Accompanied by his two sons – Ian Finkel, the World’s Greatest Xylophonist, and Elliot Finkel, concert pianist extraordinaire – the 91-year-old Fyvush offers a first-hand account of his incredible career from Second Avenue to contemporary television stardom. 8pm. $45.
THEATER: The Mystery of Irma Vep: A Penny Dreadful @ Berkshire Theatre Group’s Fitzpatrick Main Stage, Stockbridge. Charles Ludlam’s classic romp of a gothic spoof is directed by Aaron Mark, and stars Bill Bowers and Tom Hewitt. 8pm. $42, $52 & $62. Through July 19.
FILM: “The Internet’s Own Boy” @ Spectrum 8 Theatres, Albany. Brian Knappenberger directs this film about programming prodigy and information activist Aaron Swartz. From Swartz’s help in the development of the basic Internet protocol RSS to his co-founding of Reddit, his fingerprints are all over the Internet. Skype Q&A with director following the show. 6:30pm. $10.