Oct. 7–10. One of the world’s 50 top jazz/avant music festivals, according to DownBeat, this annual event includes multiple shows over 4 days. Today: A Conversation with Roscoe Mitchell (5 p.m., Community High School auditorium, 401 N. Division) is followed by a performance by the local experimental & improvisational Creative Arts Orchestra featuring Edgefest honoree master Detroit saxophonist Mitchell, one of the great jazz innovators of the post-Coltrane, post-Ayler era. Includes the world premiere of a composition by Michael Malis. At the Kerrytown Concert House: Ken Kozora’s “Birds of a Feather” (7 p.m.) is a world fusion ensemble led by multi-instrumentalist Kozora, a veteran local jazz luminary. The quartet Dimensionality (8 p.m.) features improvisational singer Andrea Wolper. The West Michigan quartet Teiku (9 p.m.) is known for its experimental jazz improvisations on ancestral Jewish melodies. Improvisation-centered ensemble the Michael TA Thompson Quintet (10 p.m.) is led by New York–based postbop and free jazz drummer Thompson and includes vocalist Deanna Relyea. 5, 7, 8, 9, & 10 p.m., Kerrytown Concert House, 415 N. Fourth Ave. Tickets $20 per show (students, age 18 & under, $10) in advance at kerrytownconcerthouse.com & (if available) at the door. $70 day passes (Saturday, $100) and 240–390 full festival passes in advance only online & by phone. (734) 769–2999.

Oct. 8–10. All invited to this annual gathering of enthusiasts of the original Argus camera company, which operated in Ann Arbor 1936–1969. Events include presentations, exhibitions (see Galleries), a field trip to the Henry Ford Museum, meals, photo contests, and auctions. Thurs. 3–8 p.m., Fri. 10 a.m.–7 p.m., Sat. 9 a.m.–8:30 p.m., 525 W. William. $50 (members, $40) suggested donation. Preregistration required at argusmuseum.org/fall-conference. (313) 499–0551.

Every Wed.–Sun. A carnival atmosphere with a variety of family-oriented fall activities on this family farm, including wagon rides, a petting farm, a corn maze, and more. For an extra charge on Sat. & Sun., an apple cannon, paintball, apple or pumpkin picking, and other activities available. Cider & donuts available. Also, on Oct. 3 & 4, local artisans & crafters sell their items at the Craft Show Weekend, and on Oct. 24, young entrepreneurs sell homemade items at the Kids Market (noon–4 p.m.). No pets. 11 a.m.–6 p.m., 5565 Merritt (east of Carpenter), Ypsi. Weekend admission: $27.50 (babies under 2, free). Weekday admission: $18 (babies under 2, free), online only at wiards.com. (734) 482–7744.

Every Thurs., Fri., & Tues. All invited to play ACBL-sanctioned duplicate bridge (Tues. & Fri.) and a 499er game (Thurs.) for players with no more than 499 ACBL master points. 1–4 p.m. (arrive by 12:45 p.m.), 1830 Washtenaw Ave. $9 per person. If you plan to come without a partner, email [email protected]. 

Every Fri.–Sun. Three different audiovisual planetarium shows suitable for all ages. T. Rex (noon) describes the iconic dinosaur’s scientific and cinematic history (includes scenes of dinosaur violence); The Sky Tonight (1 & 3 p.m.) explores the current night sky, with tips on how to find the cardinal directions, constellations, and planets on your own; and Tales of the Maya Skies (2 p.m.) immerses viewers in the wonders of Mayan science, examining how Mayan scholars developed a sophisticated understanding of astronomy, architecture, and mathematics. Noon, 1, 2, & 3 p.m., 1105 North University. $9 at the gift shop. Limited capacity. (734) 764–0480, ummnh.org.