7 p.m. Saturday and 2:30 p.m. Sunday, Chamber Orchestra of the Springs, First United Methodist Church, 420 N. Nevada Ave., $5-$20; 719-633-3649, chamberorchestraofthesprings.org

For the official musical celebration of their 30th anniversary, our local chamber orchestra has programmed the familiar: Beethoven's "9th Symphony." With dramatically smaller orchestral and choral forces then what contemporary concertgoers are accustomed to, the sound they will produce will be anything but that.

"We're going to (be) much closer to what Beethoven had in front of him when he conducted the premiere of the '9th,'?" said the orchestra's music director and conductor Thomas Wilson. "You will hear different textures. You'll hear lines. Things balance out differently. There's a greater clarity and a lightness to it. It's surprising how different the piece can be.

"When you have a huge orchestra, often the faster tempos that Beethoven wrote are really difficult to achieve. With a smaller group that's a little more fleet and can just fly along, it brings those faster passages out in a much different way. It's an ode to joy. It just feels more joyful."

The orchestra will be joined by a quartet of local and regional soloists and Deborah Teske's "chamber-sized" Colorado Vocal Arts Ensemble to realize the famous celebration of universal brotherhood in the final movement of the "9th." In the concert's first half, Teske will conduct her ensemble in Morten Lauridsen's "Mid-Winter Songs" after Wilson conducts an orchestral arrangement of the same composer's "O magnum mysterium."