What if you couldtalk to every lessonyou've ever had?

Arco records your lessons, creates accurate transcriptions, generates intelligent summaries, and builds a personalized 2nd brain you can chat with.

Ask Arco Anything—your practice assistant is grounded in your lesson history, real teacher guidance, and deep musical knowledge. Works for all instruments, styles, and languages.

Sound familiar?

The metaphor that finally unlocked phrasing.
The exact advice that transformed sound production.
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.

How Arco Works

Intelligence

Not generic AI.

Lesson Summaries

Every lesson becomes clear, structured, and easy to revisit.

Arco turns a live lesson into something you can skim later, search, and share.

View sample summary

Arco is a music practice assistant with context. It knows the difference between Russian and Franco-Belgian bow hold, remembers what your teacher said about your third finger, and can connect that advice to a wider world of pedagogy.

Because Arco knows your recordings, transcripts, and summaries, it can do more than answer questions. It can help turn your lesson history into a practical plan for what to review, what needs attention, and what to focus on next.

ARCO CHAT

Ask naturally—Arco knows when to reference your own lessons, and when to search the broader musical wisdom.

Broader Musical Knowledge

Technique, interpretation, repertoire, pedagogy, and practice ideas.

Your Lesson History

Your own recordings, transcripts, and summaries when you want to remember what was actually said.

Here's a sample chat:

You

My vibrato sounds tight and mechanical. What should I adjust first?

Arco

Drawing on broader musical knowledge

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...

Even before your first recording—Arco is ready to talk. Ask anything about technique, interpretation, or artistry, and as your library grows, Arco can bring your own lesson history into the same conversation.

What has my teacher said about improving my vibrato?How has my intonation progressed over the past 6 months?What practice strategies did my teacher recommend for Paganini Caprice No. 1?Create a practice plan for my audition repertoire.Create a 2-hour intonation workshop based on everything I've taught.What metaphors have I used to explain spiccato?Write a post on the 5 most common bow technique problems.What was John supposed to have prepared for today's lesson?How do different historical pedagogues approach sound production?What etudes can help me with shifting?Help me create a lesson plan for my student John.I have pain in my left hand, I think from being overly tense.How does my teacher's vibrato advice compare with Galamian and Flesch?Based on my progress and issues, which exercises should I focus on?What fingering did my teacher recommend for the Chopin Ballade?How can I improve my pedaling technique?What exercises has my teacher suggested for hand independence?Create a practice plan for my Beethoven sonata.What has my teacher said about my tone quality at the piano?How should I approach the voicing in this Bach fugue?What did my teacher say about my fingerpicking technique?How can I improve my barre chord transitions?What scales should I practice for jazz improvisation?What has my teacher said about improving my vibrato?How has my intonation progressed over the past 6 months?What practice strategies did my teacher recommend for Paganini Caprice No. 1?Create a practice plan for my audition repertoire.Create a 2-hour intonation workshop based on everything I've taught.What metaphors have I used to explain spiccato?Write a post on the 5 most common bow technique problems.What was John supposed to have prepared for today's lesson?How do different historical pedagogues approach sound production?What etudes can help me with shifting?Help me create a lesson plan for my student John.I have pain in my left hand, I think from being overly tense.How does my teacher's vibrato advice compare with Galamian and Flesch?Based on my progress and issues, which exercises should I focus on?What fingering did my teacher recommend for the Chopin Ballade?How can I improve my pedaling technique?What exercises has my teacher suggested for hand independence?Create a practice plan for my Beethoven sonata.What has my teacher said about my tone quality at the piano?How should I approach the voicing in this Bach fugue?What did my teacher say about my fingerpicking technique?How can I improve my barre chord transitions?What scales should I practice for jazz improvisation?

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 summarizes automatically. Your students stay fully present. The summary is richer than any notes could be.
Walk in prepared, every timeSee what each student covered, what they were assigned, and where they left off. Preparation takes seconds.
Parents stay informed without extra workProfessional, parent-friendly summaries generated automatically. Share with one tap.
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.
Already recording? Import everything.Import existing audio or transcripts from Zoom, Voice Memos, typed notes, or any source. Arco turns that archive into something searchable.

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?Summaries 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 on months of progress. See what's working and where to focus next.

Between lessons, Arco becomes the practice assistant that helps you remember, review, and move forward.

Every lesson makes Arco smarter

Arco isn't a note-taking app. It's a living intelligence that grows with every session.

Designed for violin, cello, piano, guitar, voice, and more. Handles the terminology, technique, and traditions specific to each instrument. Works in any language.

A Letter from the Creator

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 coding. Half a million lines of code later, Arco is the first tool of its kind—not just in music, but in education broadly.

Daniel KurganovViolinist & Teacher

The Team

Built by musicians and technologists

Daniel Kurganov

Co-founder, Engineering & Designer

Internationally-acclaimed violinist, pedagogue, and AI expert. Recording artist and innovator in music education technology.

Alex Kurganov

Co-founder, Engineering & Advisor

Technologist and inventor shaping how people connect through speech and AI. Holder of multiple U.S. and international patents.