Circa '21 Dinner Playhouse, 1828 3rd Ave., Rock Island, will present the musical A Mighty Fortress is Our Basement (book by Greta Grosch; music and lyrics by Drew Jansen) from March 15-June 1. There are evening performances on Wednesdays, Fridays, Saturdays, and Sundays, and matinees on Wednesdays. See the website for times and ticket prices. For tickets, call 309-786-7733, ext. 2 or order online.