String AI: Strings Practice

Youna Choi

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String AI is an AI practice coach built exclusively for violin, viola, and cello. It listens to every note, watches your form, scores every attempt, and tells you exactly what to fix — in real time.

Its scoring standards were designed by a cellist trained at Curtis, Colburn, and Seoul National University, and reviewed by string players trained at Eastman, Manhattan School of Music, USC, and CIM. The standard a world-class teacher holds you to, applied to every minute you practice.

THE STRUCTURE OF A LESSON, EVERY TIME YOU PRACTICE
String AI plans your session, scores each attempt across five axes, diagnoses what needs work, and prescribes drills that target it. You always know what to work on next — and why.

GOOD PRACTICE HABITS, BUILT IN
Set a target date for any piece and String AI paces you to it — planning each day's session, tracking whether you're ahead or behind, and warning you early if the timeline isn't realistic. Spots that need work aren't glossed over: the AI isolates them into short two-measure drills and has you repeat exactly what needs work. This is how serious players practice — and the app makes it a habit.

WHAT IT SCORES (5 AXES + SUPPORTING)
- Intonation — real-time pitch tracking, note by note
- Rhythm — timing and steadiness
- Tone — clarity and quality of sound
- Dynamics — control of loud and soft
- Posture & bowing — on-device vision analysis of your form
Supporting checks such as vibrato complete the picture, so your next priority is always clear.

BUILT FOR STRINGS — NOT A GENERIC MUSIC APP
Violin, viola, and cello each receive instrument-specific analysis, tuned to how the instrument is actually played.

WORKS WITH YOUR TEACHER (OPTIONAL)
Enter your teacher's invite code and the week between lessons stops being a blind spot. Your teacher sees your practice time, five-axis scores, weak points, and assignment progress — and can send back assignments, teaching notes that steer the AI coach toward what they want you working on, and markings written directly on your sheet music. Off by default, on only once you enter the code, and revocable at any time. Recordings are never shared — none are ever stored.

YOUR SOUND NEVER LEAVES YOUR DEVICE
Audio and video are processed entirely on your device — never stored, never uploaded. Only your practice scores are saved to your account. No ads. No tracking.

PLANS
Start with a 7-day free trial, then choose a plan by daily practice volume. Each plan includes a daily baseline and a monthly total: practice up to three times your baseline on busy days, and unused minutes carry forward within your monthly total.
- Basic — 15 min/day baseline · 450 min/month
- Casual — 30 min/day baseline · 900 min/month
- Standard — 45 min/day baseline · 1,350 min/month
- Pro — 60 min/day baseline · 1,800 min/month
Subscriptions renew automatically; cancel anytime in your account settings.

For a fraction of the cost of a single private lesson, String AI coaches every practice session, every day. From beginners building intonation to advanced players refining tone — make every minute count.

Students under 14 require a parent's consent before use, in line with children's privacy laws.

Nima yangiliklar

String AI — first release.

• Real-time scoring on five axes: intonation, rhythm, tone, dynamics, posture
• Drills that isolate the few measures you actually miss
• Sheet music for violin, viola, and cello — mark it up with a pen, pinch to zoom
• Practice Room — large tuner, metronome, and drone
• Practice journal — a line a day, shown on your calendar
• Optional teacher linking — share scores, weak points, assignments

Audio and video are processed on your device and never stored.