This ensemble of 32 Chelsea High School students celebrates its 30-year anniversary in this concert of traditional Scottish and Irish jigs and reels, along with other folk-inspired music. Openers: the Beach (Middle School) Fiddle Club and the North Creek Fiddlers, a Chelsea traditional American string quartet. All CHO alumni are invited to the stage to perform at the end of the concert. 7–9:30 p.m., Chelsea High School Auditorium, 740 N. Freer, Chelsea. Tickets $15 (students & seniors, $10) in advance at tinyurl.com/y87xbes8 & (if available) at the door. (734) 475–1957, chelseahouseorchestra.org.