Ike Willis, a guitarist with a great baritone voice who worked with Frank Zappa from 1978 to 1988, brings his band, the Pojama People, to play a mix of Zappa standards and his own arrangements at 7:30 p.m. Saturday, Sept. 1, at Spark Museum of Electrical Invention, 1312 Bay St.

The event is all-ages, with alcoholic beverages available for purchase. Tickets, $15, are available in advance through Brown Paper Tickets.