Colorado Symphony Orchestra’s assistant principal/second flutist Catherine Peterson will perform with other members of the Ivy Ensemble — Erik Peterson on violin and Philip Stevens on viola — in a Summer Matinee Concert at 2 p.m. on July 10 in Hampden Hall at Englewood Civic Center, 1000 Englewood Parkway. The program will include: Mozart’s “Duo for Violin and Viola” and Beethoven’s “Serenade.” Also scheduled July 17: Jason Shafer on clarinet, Ian Wisekal on oboe and Joshua Sawicki on piano performing Brahms’ “Clarinet Sonata,” Klughardt’s “Schilfleider” and Messager’s “Solo de Concours.” Tickets for these programs cost $15 at the door or at englewoodarts.org.

Once upon a time …

There was a little ogre named Shrek … Front Range Theatre Company will present “Shrek” on July 19 and 20 at Highlands Ranch High School, 9375 Cresthill Lane, Highlands Ranch. Director is Barb Dignan, retired HRHS drama teacher, who says she has more than 50 kids enrolled in the summer camp/production camp, which also meets at HRHS. Performances will be at 7 p.m. July 19, 20 and 2 p.m. July 20. Tickets: frontrangetheatre.org or at the door.

Magic and music

Theatre of Dreams in Castle Rock offers a second session of Wizard Camp July 8-11, 9:30 a.m. to noon. ($175 includes class, supplies and stage recital.) 735 Park Ave., Castle Rock, 303-660-6799. Also scheduled: Chris Daniels and the Kings at 7:30 p.m. July 12 and 13.

Littleton Museum concert

The Delta Sonics will perform July 10 at 7 p.m. on the lawn at Littleton Museum, 6028 S. Gallup St., Littleton. Food truck available. Bring a chair or blanket. Free. 303-795-3950.

Audubon Nature Center

Denver Audubon is celebrating a 50th anniversary this year and lists summer field trips and programs including events at Front Range Birding, Wheat Ridge Greenbelt/Prospect Park and Harvey Park, all on July 6. Walk the Wetlands on July 7, Roxborough State Park on July 11 and Survey Sandstone Ranch on July 12 — and much more. For information, see denveraudubon.org/events/list/ or call 303-973-9530.

Kaleidoscope show

The annual Kaleidoscope Juried Art Show opens July 8 at Colorado Gallery of the Arts at Arapahoe Community College, Littleton campus, 5900 S. Santa Fe Drive, Littleton. Juror is artist Mary Williams. A closing reception is 5 to 7 p.m. on Aug. 2. Gallery open weekdays. Free.

`Full Monty’

The popular musical “Full Monty” plays July 19 to Aug. 4 at PACE Center, 20000 Pikes Peak Ave., Parker. For tickets and information: parkerarts.org, 303-805-6800.

Used book sale

Southglenn Library, 6972 S. Vine St., Centennial, hosts a used book sale from 9 a.m. to 6:30 p.m. on July 12 and noon to 4 p.m. on July 13. The sale of used books funds programs of the Friends of Arapahoe Libraries, which donated more than $100,000 last year for events, materials, equipment. Books, collectibles, DVDs and audiobooks for all ages. 303-LIBRARY or arapahoelibraries.org.

Curious Theatre

“Building the Wall” by Pulitzer-winning playwright Robert Schenken plays at Curious Theatre, 1080 Acoma St., Denver from July 5 to 27. Curioustheatre.org. 303-623-2349.