8 p.m., $25 (free for members)
12A Tyler St.
Fed up with staring at the same rock wall? Visualize Somerville, using a system of projection systems, will turn the climbing walls at Brooklyn Boulders into waterfalls, mountain peaks and lava flows. Escape to the outdoors, inside.
We Dig Free Fridays presents: Kat Wright & The Indomitable Soul Band plus Soulpax
17 Holland St.
Memphis soul meets R&B and is topped off with the “delicate yet powerful; gritty yet highly emotive; sultry and dynamic” voice of Kat Wright. And it’s free!
Seed Swap and Sale
10 a.m.-2 p.m., Free
Center for Arts at the Armory
191 Highland Ave.
One person can only grow just so many zucchini, so bring those extra seeds to the Armory and get something to diversify your garden. Don’t have any seeds? Place your order for High Mowing Seeds while you’re there.
8 p.m., $29
55 Davis Square
An evening of traditional Irish music from a world-class band.
Bite: Artist Talk
3:30 p.m., Free
155 Powder House Blvd.
It’s possible to experience food like we experience art. Both are highly sensual experiences that link heavily to our memories. Join the artists behind this exhibit for a look at art made with and about food. The event is free, but don’t forget to bring a donation for the Somerville Homeless Coalition’s Project Soup (full list of needs here).