Thursday-Sunday: It was 10 years ago that choreographer Sarah Michelson was first commissioned by the Walker Art Center for a piece, titled “Daylight (For Minneapolis),” which drew inspiration from the museum’s Herzog & de Meuron-designed expansion. She returned in 2011 for a second commission, this time tapping into Christian narratives and personal history in collaboration with playwright/director Richard Maxwell. To open the Walker’s 2015-16 season, Michelson is back, marking the 10th anniversary of “Daylight” with the brand-new work “tournamento,” showing the fruits of her lasting relationship with the center. In addition to the evening performances, the McGuire Theater will open early each afternoon of the four-day run (at 3:45 p.m.). It’s unclear what might be happening then — Michelson has been highly secretive about the performances — but it won’t cost much to find out: onstage seating is $1 and auditorium seating is free. (7 p.m. Sept. 24-27, Walker Art Center, 1750 Hennepin Av. S., Mpls., $28, 612-375-7600, walkerart.org.)