Sports Science Technology for Musicians
Imagined by a Juilliard graduate and developed with aerospace engineers, Tactus Technologies brings sports science methodology to the world of classical music.
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We understand the challenges faced by String Musicians and their teachers…
Learning Curve
Beginners often face challenges with posture, sound production, and developing effective practice habits, which can generate substantial frustration.
The Invisible Problem
The bow grip is where most string students struggle longest. Correct thumb placement feels uncomfortable and counterintuitive — so students avoid it. Tension builds, compensations develop, and what starts as a small mistake becomes a deeply ingrained habit.
Teaching Limitations
100% of teachers face repetitive instruction correcting posture, tone, and practice habits. Limited availability, scheduling conflicts, and high lesson costs create further barriers.
Tactus One addresses this directly — a precision-molded bow attachment that makes correct thumb placement intuitive. Place it on your bow and let proper muscle memory build with every practice session. Our patent-pending sensor platform comes next, capturing real-time data on bow forces, speed, and inclination — making technique measurable for the first time.
Introducing
Tactus One
The Ergonomic Violin Bow Grip
Our first product is a precision-molded violin bow grip that guides your thumb into the correct position, enabling the other fingers to rest naturally and function as they should. No sensors, no app — just better form built into your bow, every time you play.
- Ergonomic Design
- Covers the corner of the frog, making correct thumb placement comfortable rather than something to endure.
- For All Skill Levels
- Benefits beginners building proper form from the start, and professionals seeking sensory modulation and reduced tension.
- Just Play
- Practice as you normally would. With your thumb correctly positioned, the instinct to pinch and grip releases naturally — and with it, the tension that builds in your bow hold.
Meet Tactus
Become a better player in three steps
Fit the grip
Slip the ergonomic grip onto your bow in seconds. It cradles your hand in the correct bow hold from the very first note.
02 Practice as usual
Run your normal session. Nothing to switch on, nothing to think about, so your attention stays on the music.
03 Improve faster
With correct placement reinforced every session, proper technique becomes muscle memory that stays with you long after you take the grip off.
The results
Practice that moves the needle
of teachers face repetitive instruction correcting the same fundamentals
to noticeable improvement in tone for focused early adopters
change to the authentic feel of your instrument
“Musicians are athletes of little muscles.”
The community
Join the players already rethinking practice
“Tactus is excellent at highlighting good positioning and not-excessive use of the thumb, and also seems to help with developing a good bow stroke and string crossing action.”
“Tactus naturally guides the thumb and fingers into a more rounded, relaxed position, helping prevent excessive tension and pressure. Its ergonomic design has the potential to be a valuable tool for violinists of all levels.”
“What I love about Tactus One vs all other devices I've tried, is that it doesn't solve your problem rather helps you solve it and create proper muscle memory in the process.”
Our team
Musicians and Engineers
A dynamic group passionate about what we do and dedicated to delivering the best results for musicians.
Dan Dery
CEO & Co-Founder
Juilliard graduate with three decades as a concert violinist and teacher. Founder of the award-winning app MyOngaku.
John Martinez
CTO & Co-Founder
NMSU mechanical engineer with professional experience in spacecraft algorithms and published research in astrodynamics.
Chris Camargo
Software Lead & Co-Founder
UC Santa Cruz CS graduate with a decade in aerospace including NASA JPL. Specializing in software product design.