Harmony Music House
Private and group music lessons | Boulder CO | Established in 2010

Mandolin Lessons

Boulder's home for private mandolin lessons. 


Robby Loeb (Beginner to Intermediate)

I began teaching music in Boulder, Colorado in 2003. I enjoy teaching students traditional Bluegrass songs as well as helping students learn and develop their own style. My intent is to find out exactly what my students want to get out of playing the mandolin, and what their learning style is so that I can adapt to it.

 Whether your focus is learning every bluegrass tune under the sun, how to improvise a solo, or just being able to hold your own at a jam with the rest of them, I can help you with that. I believe that each student can successfully achieve the expression of musical artistry through efficient practice habits, and proper guidance. Once the technical elements of playing an instrument are achieved, the door is wide open to making music as a form of art.

I studied under bluegrass legend Alan Munde at South Plains College in Levelland, Texas, and many other teachers along the way. 

I have been the director of the bluegrass ensembles at Harmony since it's inception in 2009. I am also the owner of the studio. 


Dylan McCarthy - Beginner to Advanced

With over 16 years experience playing and performing, Dylan's musical background is deep and diverse. Beginning with classical piano at the age of 7, he has explored a breadth of musical genres and instruments. His high school years were steeped in classic rock and roll, cutting his teeth in Denver dive bars at 14. He hit a turning point at 18 with his decision to attend Berklee College of Music in Boston, MA in 2012 for electric bass, while simultaneously discovering his love for mandolin and bluegrass music. Since then, Dylan has established himself in Colorado as a hard-working professional in the bluegrass music scene with his fierce guitar flat-picking, finesse on the mandolin and strong vocal presence.


Willie Gammell

Willie Gammell.jpg

Willie has played in nearly every kind of band you can think of, and in nearly every city in the US. Willie plays guitar, ukulele, bass, mandolin, and banjo.

He played guitar in rock bands in high school. He then attended Shenandoah University, studying Jazz and Classical guitar before he heard the call of the road and joined up with the Southern Funk Orchestra. Willie played society gigs around DC and as a hired gun for demos and out of town bands.

Willie helped form the Soulutions, a world music influenced reggae band. Soon Willie found himself in NYC, giving lessons to people of all ages where ever the Subway would go. Here he formed one half of the duo The Galt Line, and toured coast to coast.

Back in the DC area, Willie taught, recorded, and toured with the psychedelic metal band The Neighbors. Recently Willie has been living in Boulder and teaching all over the front range.

Willie will show you that anyone can play music. He'll bring his love of performing and broad knowledge to you in every lesson.


Bonnie Sims  - Mandolin (Only available on Tuesdays)

I have been performing for 15 years, I started singing with my father from a young age and began playing guitar at 12 and mandolin at 14. I have played at venues such as Six flags over Texas in Arlington, Silver Dollar City in Branson, MO, Rockygrass 2009 with KC Groves and the Blue Maddies, and many local venues here in Colorado as well as in the Dallas/Ft Worth area where I grew up. I spent two years at South Plains College in Levelland, TX where I studied bluegrass, country, and western swing styles. I took private mandolin lessons from Joe Carr and bluegrass ensembles with Alan Munde. I also took private voice lessons with Rusty Hudleson and learned how to yodel. I was awarded Best Female Bluegrass Vocalist both years I attended that program (06, 07) and Best Female Bluegrass Instrumentalist the second year. I was also a member of the Pickin' On the Plains and Western Swing ensemble.

I really believe that music is all inclusive and like to encourage anyone who has a desire to be musical to do it. In saying that, I also like to allow the student's musical tastes to dictate what we learn and the speed at which we do it. Private lessons are the perfect environment for that and then you have ensembles where you can try out your musical ideas and practice playing well with others which is equally important. Harmony Music House will allow your musical vocabulary to grow.


Sam Parks - Mandolin (Beginner to Advanced)


Sam Parks began playing mandolin at the age of 13 after being inspired by musically developed kids his own age at the Rockygrass festival in Lyons, CO. Bit by passion, Sam began learning on an autodidactic level that was thorough and focused throughout his teens. After touring with his family band through High School, Sam attended South Plains College in Levelland, TX to expand his musical academia. He graduated on the Presidentʼs Honor Roll and was awarded Outstanding Male Instrumentalist and Vocalist of his graduating class.

Samʼs mandolin style has been influenced by the playing power of Sam Bush, the precision of Chris Thile, and the timing of Adam Steffey. His styles range from  bluegrass, old time, celtic, swing, dawg music, and progressive acoustic.

I really enjoy working with students and watching them grow on their instrument. Itʼs incredibly rewarding. I feel each student needs an individualized lesson according to their abilities, understanding, and goals. Deciphering what each student needs is really  fun to me. I enjoy the challenge of sharing musical knowledge in a way YOU can understand.

 Book a lesson with Sam (choose one below)