by Amber Wyatt
Second from left, Susan McCullough playing French Horn.
By any measure, Rhythms of the Cosmos is not your typical brass concert. Presented by the Denver Brass, the multimedia performance blends bold brass sonorities, percussion, lighting, and cosmic imagery into an immersive experience that feels as much like a journey as it does a concert. For a group celebrating more than four decades of music-making, the show is a striking reminder of why Denver Brass continues to captivate audiences across the Front Range.
Founded in 1981 by Kathy Brantigan and her husband, both tuba players, the ensemble was born from a simple desire to make music together. “We founded Denver Brass because we both played tuba,” Brantigan recalled with a laugh. “We wanted to play together. So we had to multiply out from two tubas, how many trumpets do you need to balance out? How many trombones? How many horns?” That playful curiosity ultimately grew into one of the region’s most distinctive musical organizations.
Brantigan believes the ensemble’s longevity stems from both its sound and its spirit. “Brass players have kind of a unique fraternity,” she said. “We all have similar personalities, and we love the power and the heroic sounds that brass makes. It’s really special to play with all brass, it’s a unique sound.” Far from being one-dimensional, she emphasizes that the ensemble 
can move seamlessly from delicate and romantic to bold and triumphant. “I’ve always said goosebumps are guaranteed,” she added. “There are moments at our shows you don’t forget when you go home.”
One of the musicians who has experienced the entire arc of the ensemble’s history is French horn player Susan McCullough, the only remaining original member. “As long as we’ve been in existence, around 45 years,” she said when asked how long she’s played with the group. McCullough describes Denver Brass concerts as constantly evolving. “Everything we do is completely different from the last. One show it’s classical, the next time it’s jazz, then funk. What style is your show? Everything,” she shrugs.
That stylistic freedom is on full display in Rhythms of the Cosmos, which features music inspired by space, time, and motion. Trumpeter and composer Sean Schaffer Hennessey contributed original works to the program, including Guardians of Time. “It’s a tough show,” he admitted. “Brass players get tired, but it went really well.” For Hennessey, the appeal of Denver Brass lies in its emotional breadth. “Each show is kind of a roller coaster through emotion,” he said. “There’s a heart to this group. We take music that’s often orchestral and bring it into a whole different realm.”
The concert’s cohesion owe
s much to conductor Warren Deck, former principal tubist of the New York Philharmonic, who joined Denver Brass after moving to Denver in 2002. Deck’s path to conducting was unconventional. “I never conducted anything,” he said. “I just sat in orchestras and watc
hed my conductors. One day these guys said, ‘Why don’t you conduct?’ and I heard ‘yes’ come out of my mouth.” His approach reflects the ensemble’s adventurous spirit. “You never know what you’re going to get,” Deck said. “That versatility is worth checking out.”
Behind the scenes, Executive Director Becky Wilkins helps shape the show’s narrative arc with Kabin Thomas and Andy Wolfe. “It starts with the theme,” she explained. “For this one, we were talking about rhythm, and we added space.” From there, she works on sequencing the music and layering theatrical elements that curate an experience, lighting, imagery, and sound design, support the audience’s emotional journey. “It’s more than just a concert,” Wilkins said. “It’s a show. You experience all these elements and let the music really sink in, it becomes an almost spiritual event.”
One of the most striking moments features ambient sound recordings from Mars, paired with imagery that evokes isolation and discovery. “The images really took me there,” Wilkins said. “They’re the frosting on the cake, helping convey the story.” Kabin Thomas, narrator of Rhythm of the Cosmos and on-air morning show host and producer at Colorado Public Radio’s Classical station, drives each work to the next, “Space,” Thomas leads, “The final frontier.”
As Denver Brass looks ahead, that spirit of innovation continues with their fans that follow every show. One attendee I spoke with during intermission named Ginny, remarked “I can’t wait for Celtic Mania! The Cosmos is quite different for Denver Brass.” “Rhythms of the Cosmos stands as a powerful reminder of what the ensemble does best,” attendee Richard tells me, “Challenges expectation, stirs emotion, and invites audiences into unforgettable moments.”
If you missed Rhythms of the Cosmos, there’s still plenty to look forward to. Denver Brass continues its season with Celtic Mania on March 7th and 8th at 2:30 p.m. at the Newman Center, followed by Pulse of America on May 17th at 2:30 p.m. at Bethany Lutheran Church. Each performance offers a distinct musical experience, showcasing the ensemble’s precision, and unmistakable energy.
As Brantigan put it simply, “There are magical moments you remember from our shows, and they last.”
