Nordic ski gear swap and other Boulder events for today

Nov. 9—Boulder Nordic Ski Swap: Equip for the snow season and head to the 31st annual Boulder Nordic Ski Swap, hosted by the Boulder Nordic Junior Racing Team, where there's a chance to buy or sell new and used gear, including skis, boots, poles, helmets, packs, jackets, pants, hats, soft goods and more. Or patrons can demo equipment from various styles — like skate ski, classic ski, roller ski, backcountry cross-country ski, Telemark ski and alpine touring; 6:30 p.m. Wednesday, Boulder Elks Lodge, 3975 28th St., Boulder; Free; bnjrt.ski/31st-annual-boulder-nordic-ski-swap/.

CU Symphonic Band wraps season with 'Smoke and Mirrors': The final concert of the fall season will features piece that containing a connection to music that has been rethought, restated or recomposed. The genesis of the phrase "Smoke and Mirrors," there will be moments in every piece that are presented in foggy iterations and manipulated, updated and orchestrated from earlier music, either in previous moments in the piece itself or from different source material; 7:30 p.m. Wednesday, Macky Auditorium, 1595 Pleasant St., Boulder; Free; cupresents.org.

Noah Kahan at Boulder Theater: Folk-infused pop musician Noah Kahan plays his second Boulder show Wednesday in support of his brand new album, "Stick Changes." Stephen Sanchez will open the show; 8 p.m. Wednesday, Boulder Theater, 2032 14th St., Boulder; $29.50-$32; z2ent.com.

Open Mic at VisionQuest: Jam out with music-makers at this singer-songwriter open mic hosted by Jim Herlihy (of Boulder band Augustus). Sign up at 5:30 p.m., live music from 6-8 p.m. with three-song sets; 5:30 p.m. Wednesday, Visionquest Brewery, 2510 47th St., Suite A2, Boulder; free; visionquestbrewing.com.

Wylie at Velvet Elk: Local singer-songwriter and multi-instrumentalist reggae-roots loop performer brings the jams to the bar; 9 p.m. Wednesday, Velvet Elk Lounge, 2037 13th St., Boulder; velvetelklounge.com.

'Ancestral Trauma and the Deep Roots of Money Blocks' Book Signing: Local psychologist and coach Eva A. Malanowski will speak about and sign her new book, "Ancestral Trauma and the Deep Roots of Money Blocks," at Boulder Book Store; 6:30 p.m. Wednesday, Boulder Book Store, 1107 Pearl St., Boulder; $5; boulderbookstore.net.

'Out of Exile: The Photography of Fred Stein' film screening: This visually stunning documentary, a Boulder Jewish Film Festival exclusive, tells the remarkable story of Fred Stein's life, whose images of 1930s Paris and 1940s New York, as well as his portraits of luminaries such as Albert Einstein and Hannah Arendt, are well-known. His son Peter Stein, a Hollywood cinematographer, set about to recapture rightful acclaim for his father in this film. On Thursday, catch Peter Stein, who has worked on more than 50 feature films and TV movies as a Hollywood cinematographer, in discussion at the Dairy; 6:30 p.m. Wednesday, Dairy Arts Center, 2590 Walnut St., Boulder; $16; boulderjcc.org.

Norman Koren photo exhibit at JCC: Boulder photographer Norman Koren captures complex abstract designs found in the natural environment as well as the hidden life in intricate, often overlooked details of nature; open 8 a.m.-4 p.m. Wednesday, Messinger Gallery at the Boulder JCC, 6007 Oreg Ave., Boulder; Free; boulderjcc.org.

Museum of Boulder's Pikas and Prairies exhibit: "Pikas, Prairies, and the Climate Crisis" features field photography and video in an exhibitthat explores the connections between Colorado's shortgrass prairies and the American Pika. Pikas are a cold-loving species, are threatened by warming temperatures. Exhibit runs through Jan. 8; 9 a.m.-5 p.m. Wednesday; Museum of Boulder, 2205 Broadway, Boulder; museumofboulder.org.