Sept. 22–Oct. 2. Almost 2-week-long tech festival, with pitch competitions, a hackathon (two days of intensive coding), talks, panel discussions, a career fair, start-up demos, workshops, networking events, and more. Various times & locations. A mix of free and ticketed events. See full schedule at a2tech360.com.

(See preview) Pianist and U-M music professor Matthew Thompson accompanies U-M voice students and alumni singers in a program of traditional Korean songs that set a poem or text to music in a way that mirrors classic European art songs. Followed by a guest performance of Korean art songs by world-renowned Korean soprano Sumi Jo. The concert celebrates the first time that Korean song performance has been taught at U-M. 4 p.m., Hill Auditorium. Tickets $11–$25 in advance at smtd.umich.edu & at the door. (734) 764–0583.

Local pianist Kathryn Goodson is joined by a group of string musicians in Schubert’s 1819 “Trout Quintet,” which includes variations on his successful song “Die Forelle.” Also, Ralph Vaughan Williams’ lavish Piano Quintet in C Minor. With double bassist Gregg Emerson Powell, violist John Madison, violinist Sonia Lee, and cellist Thor Sigurdson. 4 p.m., 415 N. Fourth Ave. Tickets $32–$42 (students, $20–$30) in advance at kerrytownconcerthouse.com & at the door. (734) 769–2999.

Strolling appetizer and cocktail hour with live music TBA, followed by dinner served in the farm hoop house prepared by Zingerman’s Roadhouse chef Bob Bennett. 5–8 p.m., Growing Hope Urban Farm, 922 W. Michigan Ave., Ypsi. $150 in advance only at givebutter.com/chefs2026.  

Now in its 10th year, this showcase of local and regional jazz acts features free concerts Saturday and Sunday. Also, on Saturday at 2 p.m., a free jazz improv workshop aimed at teens (sign up at a2jazzfest.com). Tonight: the Elvin Sharp Quartet (6 p.m.), a young jazz ensemble, led by tenor saxophonist Sharp, that plays funky original compositions along with classics from the hard-bop and post-bop catalog. The Alex Hoberty Quintet (7:30 p.m.), a young jazz ensemble led by bassist Hoberty, an MSU jazz studies student. Junk Jazz (9 p.m.), a Detroit experimental jazz trio which has influences as varied as funk, punk, and Brazilian. Rabbit Hole (Sat.), 608 E. William, & Ravens Club (Sun.), 207 S. Main. Tickets $50 (Fri.) & free (Sat. & Sun.). Donations accepted. (734) 769–2999, a2jazzfest.com.

Experienced improvisers compete by improvising songs with live accompaniment. Followed at 7:30 p.m. by a pay-what-you-want Musical Improv Jam: All invited to sing or move in musical/comical improv games and exercises led by a facilitator and accompanist. No experience required. Spectators welcome. 6:30 p.m., 2350 W. Liberty. $15 in advance at heardotsay.com/events & $18 (if available) at the door.