The Deltaz, based in Los Angeles, have worked over a decade to master a wide spectrum of sounds, from heavy blues and psychedelic rock to classic country and folk. The band consists of brothers John Siegel and Ted Siegel; 8 p.m., Monday, The Laughing Goat, 1709 Pearl St., Boulder; free.
5th Annual CSA Fair — Join the 5th Annual CSA Fair. Learn about community supported agriculture and sign up for your CSA. Meet local farm representatives, take a yoga class with All Terrain Yoga, grab dinner and a beer; 5 p.m., Rayback Collective, 2775 Valmont Road, Boulder; bcfm.org.
Matt de la Pena and Loren Long — Matt de la Pena and Loren Long will speak about and sign their new book "Love"; 6 p.m., Boulder Public Library, 1001 Arapahoe Ave., Boulder; free; 303-447-2074, boulderbookstore.net/event/matt-de-la-pena-loren-long-love.
Bluegrass Jam at 12Degree — Experience one of the best bluegrass picks on the Front Range. Enjoy a craft beer and listen to some great music, and if you can play, bring your instrument and sit in; 7:30 p.m., 12Degree Brewing, 820 Main St., Louisville; free; 720-638-1623, 12degree.com/events.
Winter Bookclub Night — Fiction, nonfiction, both old and new — favorite books for bookclubs will be shared. The evening will include refreshments, recommendations, and conversations with publisher representatives and BBS booksellers; 7 p.m., Tuesday, Boulder Book Store, 1107 Pearl St., Boulder; $5; 303-447-2074, boulderbookstore.net/event/winter-bookclub-night.
"20 Feet From Stardom" screening — Millions know their voices, but no one knows their names. In his compelling film "20 Feet from Stardom," award-winning director Morgan Neville shines a spotlight on the untold true story of the backup singers behind some of the greatest musical legends of the 21st century. The film includes rare archival footage and a peerless soundtrack. During this screening Quinn Snacks will be providing free popcorn for the movie and there will be food and drink available for purchase; 7 p.m., Tuesday, eTown, 1535 Spruce St., Boulder; etown.org.
Introducing the Band with Mark Diamond — A weekly Tuesday night music series hosted by Mark Diamond that will feature a different band and style of music at every show is planned. Food and drink are available while you enjoy the music; 7 p.m., Tuesday, The Post Brewing Company, 2027 13th St., Boulder; free; 720-372-3341, postbrewing.com/event/introducing-the-band-with-mark-diamond.
Mardi Gras Party with Defunkt Railroad — Defunkt Railroad is a three-piece band playing a mix of rock and blues, R&B, originals, and Louisiana roots music (Cajun, zydeco, New Orleans funk); 9 p.m., Tuesday, Dark Horse, 2922 Baseline Road, Boulder; free.
Midday Music Meditation — Join each second Wednesday, in the Canyon Theater of the Boulder Public Library, for an hour of beautifully improvised music; noon, Wednesday, Canyon Theater of the Boulder Public Library, 1000 Canyon Blvd., Boulder; free; 303-441-3100, boulderlibrary.org/featured.
16th Annual World Sound Healing Day — Join Andi and Jonathan Goldman and friends for a free toning ceremony/meditation and send a sonic Valentine to Mother Earth as a group tones the "Ah" sound together for planetary peace. Come celebrate "The Sound Heard Around the World"; 5 p.m., Wednesday, Avalon Ballroom, 6185 Arapahoe Road, Boulder; free; 303-443-8181, worldsoundhealingday.org.