Brett Ketzer (Beginner to Advanced)
Brett is a multi-instrumentalist with a primary focus on mandolin and Bluegrass/American folk music. With nearly 10 years of teaching experience, his lessons are infused with creativity and encouragement, helping students build practical skills, confidence, and a genuine love for playing. He specializes in developing musicality through learning by ear, improvising, and jamming seamlessly with others.
At age nine, Brett picked up the guitar as his first instrument, inspired by players like Jimmy Page, David Gilmour, and Jimi Hendrix. Although he still enjoys bluegrass flat-picking guitar today, the instrument took on a more casual role in his teenage and young adult years as he focused on drums and percussion. In high school and college, he immersed himself in every musical opportunity available—from jazz and marching band to drum ensembles and rock groups.
After earning a B.A. in Music Production from the Art Institute of Tennessee–Nashville, Brett became fully enthralled with American folk, Appalachian old-time, and bluegrass music. It was then that he picked up his now-main instrument, the mandolin. Over the past 15 years, Brett has toured across the U.S., recorded multiple studio albums, and collaborated with top-tier musicians as a professional mandolinist.
Brett approaches music with a spirit of curiosity and discovery, and he strives to pass that mindset on to his students. He believes the best mentorships are collaborations—where teacher and student learn and grow together as musicians.
Book a lesson with Brett (choose one below)
In Studio Lessons
Robby Loeb (Beginner to Intermediate)
I’ve been teaching music in Boulder, Colorado since 2003, with a special focus on traditional bluegrass and helping students find their own unique voice on the mandolin. My goal is to understand what each student hopes to get out of playing—and how they learn best—so I can tailor lessons to fit their individual style and interests.
Whether you're aiming to master a long list of bluegrass standards, learn how to improvise with confidence, or simply feel comfortable jumping into a jam session, I can help you get there. I believe that with the right guidance and smart practice habits, anyone can develop the technical skills that open the door to expressive, artistic playing.
I studied with bluegrass legend Alan Munde at South Plains College in Levelland, Texas, along with many other inspiring teachers throughout my journey.
Since 2009, I’ve served as the director of the bluegrass ensembles at Harmony and am also the studio’s owner.
Book a lesson with Robby (choose one below)
In Studio Lessons