Texas legends

See two original Texas artists play their unique brand of traditional Tex-American music on the same stage, on the same night, as part of eTown Presents. Jim Heath (Reverend Horton Heat) and Dale Watson, two living Texas icons will perform; 7 p.m., eTown, 1535 Spruce St., Boulder; $35; 303-443-8696, etown.org/events/reverend-horton-heat-dale-watson.

TODAY

The Three Sisters — Though most productions of this play focus on the pathos of a family trapped by inaction, Chekhov described the play, much beloved by actors for the exquisite depth of its characters, as "comedy, sometimes verging on farce." Join a darkly funny exploration of the nature of happiness; 2:30 p.m., The Nomad Playhouse, 1410 Quince Ave., Boulder; $9-$12; 303-440-4510, tarahighschool.org.

Third Thursday Improv — Groups will present various styles of improv based on audience suggestions. The night promises to be interesting, adventurous and innovative. Above all, the night will be creative. Boulder Improv Collaborative is a community of 800-plus improv lovers; 7 p.m., Wesley Foundation, 1290 Folsom St., Boulder; $12; 303-588-0550, boulderimprov.com.

70 Years of Rocky Mountain Rescues — Formed in 1947, Boulder's highly regarded Rocky Mountain Rescue Group is one of the oldest rescue groups in the country. Longtime RMRG members will explain how this all-volunteer organization has grown over the past seven decades and share some of their extreme rescue stories; 7 p.m., Chautauqua Community House, 301 Morning Glory Drive, Boulder; $9-$12; 303-440-7666, chautauqua.com.


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Madeleine Mitchell returns to Boulder — Madeleine Mitchell has performed as a violin soloist in some 50 countries, with major orchestras and festivals. Her acclaimed discography was nominated for a Grammy and BBC Music Awards. Local favorite, Tamara Goldstein, a staff pianist at the Aspen Music Festival, also performs; 7:30 p.m., Boulder Piano Gallery, 3111 Walnut St., Boulder; boulderpianogallery.com.

UPCOMING

Friday Afternoon Concerts & Art Shows — Jayme Stone's Folklife follows the bends and bayous through the deep river of song and story with spellbinding singing, virtuosic playing and captivating storytelling. Evolving out of Stone's "Lomax Project," this gathering of versatile musicians, including Enion Tiller (fiddle, voice), Rich Zimmerman (mandolin, voice) and Eric Thorin (bass, voice) blow the dust off of old songs and remakes them for modern ears. With artwork by Erin Huybrechts-Davis; 2:30 p.m., Friday, Stewart Auditorium at Longmont Museum, 400 Quail Road, Longmont; $10; 303-678-7869, longmontcolorado.gov/museum.

The Mulligan Brothers — The Mulligan Brothers return to the Chautauqua Community House with a new sister and new music. From Alabama, the Mulligan Brothers play their own brand of American folk rock. The band consists of lead vocalist Ross Newell and the harmonies of Greg DeLuca, Ben Leininger and Melody Duncan; 7:30 p.m., Friday, Chautauqua Community House, 301 Morning Glory Drive, Boulder; $17-$20; 303-440-7666, chautauqua.com.

Sawyer Organ Concert with Bryan Dunnewald — Bryan Dunnewald will present a concert on the Salmen organ in the First Congregational Church sanctuary. The program features the music of Cochereau, Widor, Bach and Hindemith and is anchored by two monumental works: Hindemith's First Sonata for Organ and Widor's Sixth Symphony. Both pieces, composed by innovators in their field, draw on rich traditions and will explore the breadth of color of the First Congregational Church organ. The program will last about 90 minutes; 7:30 p.m., Friday, First Congregational Church, 1128 Pine St., Boulder; free; 303-442-1787, firstcong.net.

Walk with a Doc — Join Boulder Community Health and the City of Boulder for Walk with a Doc and take steps toward better health. Walk with a Doc is a fun, free community program demonstrating how easy it is to get 30 minutes of exercise a day and prevent disease. This month's health topic is "Diet and Heart Disease" by Dr. Nelson Trujillo, board-certified cardiologist at Boulder Community Health; 8 a.m., Saturday, East Boulder Community Park, 5660 Sioux Drive, Boulder; free; bch.org.