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Tell us where you're at.
Total beginner, school orchestra, private lessons, returning after college — a short placement that takes about three minutes. No quiz that judges you; just enough for us to put you in the right starting module.
Cello lessons + theory, built for students
Learn cello the way it actually clicks.
Arco is a cello learning platform for students, school musicians, and anyone picking up the bow. Visual lessons, real cello playback, and a composition studio — all in one calm place.
The visual-first idea
One note, three places — moving together.
Every concept in Arco shows up in three views at once — the staff, a keyboard, and your cello fingerboard. Move one, the others answer.
Theory finally clicks when you can see its shape on the page, feel its place on a keyboard, and find it under a finger. Whether you're in your first week of orchestra or prepping for auditions, this is how cello is actually taught — patiently, from multiple angles, with your own hand.
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What's in Arco
Everything a cello student actually needs — and nothing else.
Real cello sound
Hear every note on a real cello.
Great for ear training and checking intonation before your next lesson or rehearsal. No MIDI flutes, no synth preset — a library of recorded cello notes played back in the lessons and the composition studio.
Cello-shaped curriculum
From open strings to shifting and vibrato.
Modules that match how cello is actually taught — first position, bow distribution, string crossings, thumb position, double stops — with theory layered in along the way so it lands where it matters.
Composition studio
Write for cello (or cello + piano).
A proper notation editor with string-aware fingering hints and real cello playback. Turn in original pieces for theory class, arrange a warm-up for your section, or just jam.
Progress, kept honestly
Streaks, quizzes, and mastery — without the nag.
Track what you practiced, when, and how it went. Handy for showing your teacher or parents what you've been working on. No flame emojis, no guilt pushes — just a quiet record that respects your time.
Clean, distraction-free design
No cringe mascots. No endless streak badges.
A focused space that respects your time — calm enough for a pre-rehearsal warm-up, deep enough for a whole weekend of writing.
Two themes, your choice
Warm manuscript by day. Deep concert hall by night.
Both fully designed — not an inverted palette. Whichever one matches your practice room.
What students say
Written by players who use it most days.
I'm first chair this year and Arco is the reason I finally understand what I'm playing.
My teacher assigns theory and I actually get it now because I can see it on the fingerboard.
I picked cello back up at 34. Arco makes it feel doable again.
How the learning flows
Three steps, most days.
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Short sessions that fit between homework and practice.
Most lessons take ten to twenty minutes. See the note, hear the note, play the note — in that order. Build fluency without blowing your whole evening.
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Write your own music and hear it back on real cello.
Once a concept is yours, the composition studio lets you use it. Write a phrase, press play, hear a cello sing it. Bring it to your teacher, or keep it for yourself.
Three hours a week, a quiet room, and this rhythm. In six months you'll read fluently, play musically, and notate your own ideas.
Read the full methodBuilt on the tradition
A student should understand what he is playing, feel what he is playing, and know why every note stands where it does. Without that, practice is noise.
Arco draws from the method-book lineage — Suzuki, Feuillard, Popper — and from the serious theory tradition of Piston and Aldwell. We studied these so your lessons do too. No shortcuts, no gamification, no confetti.
Two ways to begin
Pricing, plainly.
Every feature in every plan. The difference is how you want to commit.
Student-friendly pricing. Parents can sign up and hand off the account — the same one grows with the student. A dedicated student & teacher plan is on the way.