You have not yet heard your own true sound.
With Kuon,that practice room becomes a studio.
Measure the room, record, and finish —no installation, just your browser.
Start free. Every tool and the finishing steps are in Concerto: $19.99 a month ($199.99 a year).
Recording is the one thing you have always carried alone.
You have a teacher for playing. A luthier for your instrument. For recording, there has never been anyone.
You set up the tripod, set the levels, listen back — and somehow it is not right.
That feeling is not your playing. It is the room, and the microphone.
Measure. Record. Refine. Keep.
Every step from performance to finished work, in one place.
Technology Kuon built itself.
Tools Kuon designed to run entirely in the browser.
None of these exist anywhere else. They come with Concerto.
Start Concerto
Why Kotaro Asahina is building Kuon
I have brought together, in Kuon, the tools I truly found I needed as a working musician. I want to create a place where musicians everywhere can focus more on making — and above all on their creativity — and where, here and there across the world, small buds of culture quietly begin to grow. That is the wish of Kotaro Asahina.
Scattered tools, made one.
Creating, learning, organizing. From recording, separation and mastering to storage, notes and transcription — are you subscribing to all of them separately?
Kuon runs in the browser alone. Nothing to install, nothing to replace.
The world's scattered music tools — united in Kuon.
On the annual plan, that is $16.67 a month.
All of this,
for just $0.55a day.
Our promise
Your price,guaranteed forever.
Prices are rising everywhere. Someday, Kuon may revise its prices too. But new prices will only ever apply to new members. The price you join at stays yours — unchanged for as long as your subscription continues.
Rises apply to new members only
We will never raise the price of an active subscription
Switch billing, keep your price
Change between monthly and annual at your original price
For as long as you stay
A year from now, ten years from now — protected while your subscription continues
Today is the lowest price there will ever be.
This price stays yours for as long as you keep your subscription. Cancel at any time.
Free, or Concerto.
Just two plans. No more deciding.
- 20+ free browser apps
- DAW: 2 tracks with basic effects
- DAR: 1 track (record, edit, master)
- VIDEO SYNC (line up video and audio perfectly)
- File sharing: 2GB per transfer · ad-free
- Vault: 2GB for your work
- No credit card required
- Full DAW (multitrack, all KUON FX)
- Full DAR (record, edit, master)
- AI stem separation SEPARATOR (15/mo)
- Auto-subtitles & transcription (99 languages)
- Lesson recording LESSON RECORDER (20/mo, with summaries)
- Classical analysis (Roman numerals, modulation, voice leading)
- Intonation analysis INTONATION (cent precision)
- AUDIO MIRROR (compare against a reference)
- Host Collaborate sessions (co-create with musicians worldwide)
- File sharing: no capacity limit
- Vault: 100GB for your work
- Room Capture — measure your room, auto-correct
- KUON FIELD — match rate against the sound field you aimed for
- KUON STAGE — measure and save a room's acoustics
- KUON SPATIAL — spatial audio & immersive export
- KUON CD MASTER CHECKER — verify CD masters (DDP) in the browser
- DSD CONVERTER — play and convert DSD in the browser
Everything free and paid can do
A 60-line table. What is free, and where the paid line falls, written out in full
MICROPHONE
Kuon R&D builds the software — and the microphones.
The microphone an audio expert built for himself.
Kuon makes hardware too. Full AB-stereo recording from a single unit, hand-soldered one by one — studio-grade sound from ¥16,900.
Made, around the world.
Piano, voice, strings. Across borders and instruments — musicians recording themselves.
Everything we know is already written down.
Microphone placement, room reverberation, music theory, acoustics, gear. Everything Kuon R&D knows is published in the Journal. Free.
If reading is not enough, just ask.
KUON AI answers questions on music theory, harmony and acoustics. KUON AI does not generate music. It never forces one interpretation on you; the final choice returns to you. You can try it on the free plan; with Concerto you can talk without interruption.
About KUON AI