The Associated Artists of Butler County will present “The Art of Sound” in The Underground Gallery at The Art Center, 344 S. Main St. The exhibit showcases art inspired by sound or music, featuring local artists Kayla Aymar and Allison Zehmisch, among others, through June 17. The 76th annual Spring Show & Sale continues through June 10. “Patriot Show” entries are due June 10. Gallery hours are noon to 6 p.m. Wednesdays, Thursdays and Fridays and noon to 4 p.m. Saturdays. Closed Sundays, Mondays and Tuesdays. Admission is free. Call 724-283-6922.

Maridon Museum, 322 N. McKean St., is open from 11 a.m. to 4 p.m. Wednesdays through Saturdays and by appointment only Sundays, Mondays and Tuesdays. Admission is $4 for adults, $3 for senior citizens and students, and free for children younger than 8; children must be accompanied by an adult. Tours are led by trained docents and are available with advance notice. The museum also has a gift shop specializing in objects relating to China and Japan. Call 724-282-0123 or visit www.maridon.org.

Saxonburg Area Artists Co-Op, 215 Main St., Rear, Saxonburg, has summer gallery hours of 6 to 9 p.m. Tuesdays, 1 to 9 p.m. Fridays and 10 a.m. to 8 p.m. Saturdays. Other times are by appointment. Call 412-260-5779, 724-352-1759 or 412-849-4648.

Bottlebrush Gallery, 539 Main St., Harmony, hosts “Works in Wood” showcasing art by Robert Bishop, David Pearson, Bill Sonntag and John Banks through June 26. Hours are 11 a.m. to 7 p.m. Wednesdays, Thursdays and Fridays, 10 a.m. to 5 p.m. Saturdays, and noon to 5 p.m. Sundays. Call 724-452-0539 or visit the website www.bottlebrushgallery.com.

<B>Silver Eye Center for Photography</B>, 1015 E. Carson St., hosts “Keystone.1, The First Pennsylvania Photography Biennial” featuring 16 statewide artists who work in contemporary photography. The exhibit continues through Aug. 27. An artists reception is set for 6:30 to 8:30 p.m. Friday. Gallery hours are noon to 6 p.m. Tuesdays through Saturdays. Admission is free. Call 412-431-1810 or visit www.silvereye.org.<B>Society for Contemporary Craft</B>, 2100 Smallman St., features “Bridge 11: Lia Cook, Mariko Kusumoto, Anne Drew Potter” through Oct. 22. The exhibit features textiles, small metals and ceramics. Gallery hours are 10 a.m. to 5 p.m. Mondays through Saturdays. Call 412-261-7003.<B>North Hills Art Center</B>, 3432 Babcock Blvd., Ross Township, presents the “Regional Multi-Media Juried Art Show 2011” through June 14. Office and gallery hours are noon to 4 p.m. Mondays through Saturdays; closed Sundays. Admission and parking are free. Call 412-364-3622 or visit the website, www.northhillsartcenter.com.