Turn any piano performance into an interactive sheet you can practise with
Upload a performance video or audio. Minutes later you get a video-synced piano roll, properly engraved staff notation, chords and beats. Change speed, loop A/B, practise hands separately, right in the browser on phone or desktop.
This is the real player (demo: Fly Me to the Moon, solo jazz piano): press ▶, change the speed, loop a section, click the score to jump.Open full page ↗
See it, follow it, nail it
One timeline drives all five views, so you never lose the beat whichever one you watch.
Properly engraved staff notation
After AI transcription, a professional engraving engine lays out the score: smart hand split, arpeggios and chord symbols, swing marks, and a cursor that follows the video.
- Click anywhere on the score to jump video and roll together
- 3/4, 6/8 and other meters; accidentals spelled per key
- Download printable PDF and MIDI
Reading aids for beginners
Switch on a C-key version, solfège under the chords and key names on ledger-line notes with one tap, so you can play along before you read staff notation fluently.
- C-key view: the whole piece moved to C major / A minor, fewest accidentals
- Solfège and key names only where they help, never covering the score
Chord charts and jazz lead sheets
Keys and chord progressions are detected automatically; an iReal-style chart shows the whole tune on one screen, and a built-in piano, bass and drums band plays along.
- Roman-numeral degrees with ii–V–I progressions highlighted
- Import iReal chart libraries and practise straight away
Piano roll: A/B loop, slow practice
Notes fall onto an 88-key keyboard in sync with the video, hands in different colours. Loop any A/B section at 0.25× to 2× without changing pitch and work through it piece by piece.
- Drill mode: set the repeats, it counts and advances for you
- Plug in a digital piano and see the keys you play light up
- A practice diary logs your time on every piece
AB0.5×Programmable metronome
Plan tempo bar by bar: stepped slow practice, gradual speed-ups, a dip mid-way and back to tempo, the whole program looping. Get the passage right slowly, then climb back to full speed.
- Each step sets bars and BPM, with optional linear ramps inside a step
- 4/4, 3/4, 6/8, accents and a count-in bar
Learn the theory while you practise
The key, chord and usable scale of every moment are shown on the score: degrees, chord scales, solfège, so you understand the harmony as you play it.
- Key and modulation detection, in-key notes highlighted on the keyboard
- Chord–scale pairing and recognition of ii–V–I and other progressions
What AI can do for you
Transcription is already AI. Next: let AI find the right sheet for you, and let AI assistants call the transcription service directly.
AI sheet search Coming soon
Describe the piece, style or level in one sentence — “a beginner-friendly jazz Fly Me to the Moon” — and AI finds the best match in the library and market, or queues a transcription if none exists.
AI agent access (x402) Coming soon
AI assistants and agents can call the transcription service directly: the REST API is open today, and pay-per-call x402 access without sign-up is coming — a transcription tool for your agent.
Read the API docsWant early access or have an idea? Write to [email protected]
Your interactive sheet in three steps
From a performance to a practisable score usually takes a few minutes.
Upload a performance
Upload your video or audio (mp4 / mp3 / wav …), optionally trim a section and pick a notation style.
Automatic transcription & engraving
AI transcribes the notes, detects key, beats and chords, then engraves the score and aligns it with the video.
Practise, share, download
Practise on any device, share a link in one tap, download a printable PDF.
🎓 Teachers & creators
Publish your performances and lessons to the marketplace. The more students practise, the more you earn: 70% of the subscription pool is shared by practice time.
Go to the creator hub🔌 Developers & partners
A REST API turns your media into MIDI, MusicXML, sheet SVG/PDF and chords, with webhooks on completion; embeds and MCP are coming.
Read the API docsSimple pricing
Start free, upgrade when you need more.
- Browse the marketplace and public lessons
- Full player: roll / chords / keyboard / A-B loop
- Practice diary on this device
- Unlock every marketplace lesson
- Unlimited imports + AI transcription
- Engraved sheets + C-key view + PDF
- MIDI keyboard grading
Try your first piece now
Nothing to install. Open the library and start practising in minutes.
Open my library