Violin Lessons in Longmont, CO
Holly Petersen and Jacob Rothstein teach violin at Mojo's, pairing classical training with a real feel for fiddle style.
Why Learn Violin at Mojo's
Holly Petersen holds bachelor's degrees from CU Boulder and performs with the Longmont Symphony Orchestra, bringing a classically trained ear to every lesson. Jacob Rothstein teaches violin with a fiddle specialty, so students can lean classical, fiddle style, or both.

Holly Petersen
Holds bachelor's degrees from CU Boulder and performs with the Longmont Symphony Orchestra, teaching violin, viola, and cello with a classically trained ear.

Jacob Rothstein
Believes deeply in the transformative power of music, and brings a unique combination of empathy and enthusiasm to every fiddle and piano lesson.
A Violin Program for Every Age, Ability and Style
The violin is one of the most versatile and beloved instruments in the world—capable of delivering heartbreaking classical melodies, soaring cinematic lines, and high-energy roots grooves. In fact, a violin and a fiddle are physically the exact same instrument! The difference lies entirely in the attitude, bowing techniques, and musical traditions you bring to it.
Whether you want to master classical concertos or jump straight into traditional fiddle tunes, our lessons make starting out comfortable, expressive, and fun.
Universal Foundations for Every Violinist and Fiddler
No matter which style inspires you, every string player starts by building these core mechanics to ensure playing feels effortless and sounds clear from the very beginning:
- Balanced Ergonomics & Pain-Free Setup: Tailoring your chinrest and shoulder rest so the instrument rests naturally on your collarbone without clamping down with the jaw or hunching the shoulder, leaving both arms totally free to move.
- Natural Bow Weight & Tone Production: Holding the bow with a flexible, curved grip to channel the natural weight of your arm through the string, creating a full, singing tone instead of squeaks or scratches.
- Ear Training & “Ringing Tones”: Training your ear to navigate the fingerboard without frets, learning how to listen for the instrument’s natural acoustic ring when notes are played dead-center in tune.
- Relaxed Left-Hand Framing: Arching fingers naturally so they tap cleanly on the fingerboard tips, keeping wrists flat and thumbs loose to prevent strain and build quick agility.
- Clean String Crossing Levels: Moving the bow arm across the four string levels (G, D, A, E) with smooth elbow adjustments, avoiding unwanted squeaks or accidental scrapes against neighboring strings.
Exploring Styles: Classical Violin vs. Roots Fiddling
Once you have your core sound, our academy lets you branch directly into the traditions that excite you most:
Classical Violin: Tone Color, Precision, and Range
Classical training focuses on tone refinement, harmonic range, and expressive dynamic control:
- Vocal Vibrato: Cultivating a warm, oscillating wrist and arm motion to give sustained melodies depth, emotion, and singing resonance.
- Upper-Position Shifting: Gliding smoothly into 3rd, 5th, and higher positions to access the brilliant upper registers of the fingerboard.
- Articulate Bow Strokes: Mastering nuanced classical articulations, from silky connected legato to crisp bouncing spiccato and rapid detached martelé.
Traditional Fiddle: Groove, Drive, and Ornamentation
Fiddle playing treats the instrument as a rhythm engine and dance-hall driver across Bluegrass, Celtic, Old-Time, and Appalachian styles:
- Rhythmic Bow Shuffles: Learning signature bowing patterns—like the “Nashville shuffle” and Georgia shuffle—that lock into a driving pulse and drive dance tunes.
- Double Stops & Drones: Playing two strings simultaneously (often bowing an open string alongside a melody note) to create that classic, thick acoustic drive.
- Regional Ornamentation: Adding stylistic flair like finger slides, Scottish cuts, Irish rolls, and grace notes to bring traditional tunes alive.
- Playing by Ear & Jam Skills: Developing fast listening skills and chord awareness so you can jump into local jam circles and pick out tunes without sheet music.
Contemporary, Pop & Cinematic Strings
- The Percussive “Chop”: A modern acoustic bowing stroke that mimics the snare drum, turning the fiddle into a percussive rhythm machine for pop and contemporary bluegrass.
- Effects & Amplification: Learning how to plug in electric violins or pickup systems, experimenting with loop pedals, delay, and reverb for stage performance.
Whether you dream of joining a local orchestra, rocking an electric violin, or fiddling at the local jam session, our instructors tailor every step to the music you love. Schedule your trial lesson today and start making strings sing.
"Our son Ari has been learning violin for 8 month. Michelle, his teacher is really great with kids and he loves her. He is passionate and playing well."
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Curious about the rest of the string family? We also teach viola and cello.