What if you couldtalk to every lessonyou've ever had?
Arco records and organizes your lessons, creates rich lesson notes, and turns them into a private, ever-growing intelligence you can actually talk to—on iPhone, iPad, or desktop browser.
Ask Arco anything—Arco understands your own lesson history as deeply as the wider world of expert pedagogy. For every instrument, genre, and language.
How it works
Just press Record. Arco records in the background — even with the screen off.
Just Press Record
Press record, then teach. Arco captures the full lesson in the background, so every explanation, demonstration, and assignment is ready for notes, search, and follow-up.
Not generic AI.
Arco understands the lesson itself: what was played, what was corrected, what was assigned, and what keeps coming back. It knows why a flutist returns to Moyse's long tones from De la Sonorité, how a pianist's pedaling can blur or clarify a line, and the difference between a Russian and Franco-Belgian bow hold.
Ask naturally, and Arco answers with your lesson history and carefully curated musical expertise.
Arco will correctly spell names, works, techniques, and instrument-specific terms.
Arco can recall and draw connections between exactly what was taught, corrected, assigned, and revisited across your lessons.
When you want knowledge outside of your lessons, Arco brings in curated pedagogy sourced from the great teachers of history.
Not a play-by-play. Not meeting minutes. A document you can actually learn from.
Ask Arco: Ask about a year of progress. Ask about a technical problem. Ask what to practice next.
What were Sarah's major wins and challenges in the past year of lessons?
Major wins
The lyrical lines in the Mendelssohn Violin Concerto achieved a more fluent and vocal quality. At the Sept. 2, 2024 lesson, Sarah's opening already had a lovely basic color, but the first note often spoke a little late—the bow would start, then the phrase would bloom afterward. By the Aug. 19, 2025 lesson, she had learned to prepare the bow before the sound began, so the first note already carried direction.
Her articulation also became more speech‑like. By Sept. 26, 2025, slurs carried the vowel of the phrase while separate notes had just enough consonant at the front—cleaner, lighter, more elegant.
The cadenza gained real contrast, too. By the Mar. 24, 2026 lesson, Sarah had stopped treating it as one continuous paragraph, separating the grounded bass‑note gestures from the brilliant, suspended upper‑register answers.
My vibrato sounds tight and mechanical. What can I do?
What “tight and mechanical” actually means
When players describe vibrato this way, it almost always boils down to a few things:
- Too much gripping/pressure: Thumb and side of 1st finger clamp the neck. Finger presses too hard into the string, killing oscillation freedom.
- Joints not really moving: The last joint of the finger is stiff instead of “jelly‑like.”
- Motion driven by “shaking” big segments: Forearm/upper arm pumping while the finger/hand are locked.
- One speed, one width, on every note: Same vibrato in Mozart, Brahms, loud, soft — it feels mechanical regardless of the basic motion.
Everything below attacks these specific causes...
For Teachers
- Your students actually rememberEvery lesson becomes a permanent, searchable record. Your advice stays at their fingertips — exactly as you said it.
- No more scribbling during lessonsArco records and creates Lesson Notes automatically. Your students stay fully present. The Lesson Notes are richer than any notes could be.
- Walk in prepared, every timeOpen a student Space to see what they covered, what they were assigned, and where they left off. Preparation takes seconds.
- Parents stay informedExport parent-friendly Lesson Notes, or generate a polished progress report covering any time window.
- Your teaching archive grows with every lessonEvery session adds to a searchable record of your methodology. Turn months of teaching into workshops, articles, or lesson plans on demand.
- Record live or import your archiveCapture new lessons on iPhone, iPad, or desktop web, or import existing audio and transcripts from Zoom, Voice Memos, typed notes, or any other source.
For Students
- Review like your teacher is in the roomYour teacher's reasoning, metaphors, and step-by-step explanations.
- Plan your practiceTurn your lesson history into a focused plan for what to practice next.
- Hours of recordings, no time to listen?Lesson Notes capture what matters. Chat finds any moment. Get the benefit of every lesson without replaying every minute.
- Ask the mastersCross-reference your teacher's approach with Galamian, Neuhaus, Tárrega, and others using Arco's built-in curated intelligence.
- See how far you've comeLook back over months and years of progress. See what's working and where to focus next.
HUGE time saver!
Before Arco, I used to spend more than three hours a week taking notes while reviewing my lesson's recording. Now I can just focus on listening, and then read Arco's summary of my lesson. And the summary it makes is always better than my own notes. Plus, the chat feature is more to the point than any Google search. Highly recommend it.
Indispensable app for music students
The brainchild of a respected pedagogue and musician, ArcoAI is the app I wish existed when I was a music student. The ability to revisit my teacher's notes, specific moments in a lesson, certain epiphanies—and go deeper even when I'm not in person with my teacher: all of this is a must-have for any serious music student or parent thereof. I can't recommend this more highly!
the only ai app i use
this app is beautifully and thoughtfully made. the interface works great and the app allows me to get to the bytes of information i need much more easily and quickly!
Sound familiar?
The metaphor that finally unlocked phrasing.
The advice that transformed your sound.
Explained perfectly—and then it's gone.
Scribbled notes never capture what happened.
By the next lesson, it's already forgotten.
Evenings lost to lesson notes and parent emails.
Hours of recordings no one replays.
The teaching—the part you're brilliant at—buried under admin.
The intelligence you build in Arco is yours—encrypted, isolated by enterprise-grade architecture, and private to you. Your data is never sold to third parties or advertisers, and is never used to train outside AI models.
Read our privacy policy →Every lesson makes your Arco smarter
Arco is more than notes: it becomes a private intelligence shaped by what you teach and learn. It understands instrument-specific terminology, technique, traditions, and language switches across violin, cello, piano, flute, guitar, voice, and more, so you can ask your lesson library anything in any language.
Dear fellow musician,
I'm Daniel Kurganov—violinist, teacher, and creator of the YouTube masterclass series many of you have followed over the years. What started as an attempt to document my lessons has led to something I never anticipated: a tool that's become impossible to live without.
For years, I've watched profound moments disappear—both as a student and teacher. The detailed walkthrough for shaping phrases in Tchaikovsky Concerto—bow distribution, articulation, and nuances of rubato. The revelations in artistic phrasing and sound production. I collected notes, recorded myself, tried every system. Nothing worked the way I needed it to.
Arco is what I wish had existed.
When recent advances in AI made this kind of system possible, I knew something like this had to be built. Between rehearsals, lessons, and travel, I started building. Many lines of code later, Arco is the first tool of its kind—not just in music, but in education broadly.
Today I have over 1,000 lessons in Arco. It holds my detailed views on every topic—the hundred different ways I've explained sound production to different students—and it can draw on all of it: to prepare a lesson, shape an article, even outline a book about my own method. Every lesson I teach makes it sharper. That's what I want for you.
Daniel KurganovViolinist & TeacherThe Team
Built by musicians and technologists
Daniel Kurganov
Co-founder, Engineering & Design
Internationally-acclaimed violinist, pedagogue, and AI expert. Recording artist and innovator in music education technology.
Alex Kurganov
Co-founder, Engineering & Advisory
Technologist and inventor shaping how people connect through speech and AI. Holder of multiple U.S. and international patents.