KeyCollage
A piano practice room in your browser.
What it is
Plug a keyboard into your computer and KeyCollage turns it into a board of tiles: sheet music that plays along, falling notes, a lit keyboard, a metronome and a practice timer. It's made for the half hour you sit down to practice, whether you're learning your first tune or polishing something hard.
What it does
- Learn, Practice and Perform modes
- Sheet music that plays along, from Twinkle, Twinkle to La Campanella
- A hand splitter, so the song can play one hand while you play the other
- An option to wait for you to play the right notes before it moves on
- A metronome and a practice timer, built in
- Looks to suit the room, from a walnut console to a Wurlitzer
How it's made
KeyCollage is a static web app served from Cloudflare, so it opens fast and there's nothing to install. It listens to your keyboard through Web MIDI, which works in Chrome and Edge. It was called Keylight until October 2026, and everyone's saved boards came along when it moved.
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