MusicXML (.musicxml / .xml / .mxl) or MIDI (.mid) — from MuseScore, Flat.io, or any notation app.
Scanned PDFs: convert once with free Audiveris → MusicXML, then drop it here.
Famous songs: search "song name piano musicxml" on musescore.com, download MusicXML or MIDI, drop it in.
📱 On your phone: Android Chrome — open this app, menu → Add to Home screen, then tap 🔵 Bluetooth to link the LUMI.
iPhone — Safari has no MIDI: open Strum & Keys inside the free Web MIDI Browser app (native iOS wrapper is on the roadmap).
Enjoying Strum & Keys? 🎹
Welcome to Strum & Keys 🎹
Drop any MusicXML or MIDI sheet music here — Strum & Keys lights each note on your keyboard and waits until you play it. No sign-up, nothing leaves your device.
Connect your keyboard (optional)
Plug in a ROLI LUMI (or any MIDI keyboard) over USB, or tap 🔵 Bluetooth up top for wireless. No keyboard? The on-screen piano below is fully playable — mouse, touch, or arrow keys + Space.
Play your first note
Load the built-in demo, press ▶ Start, then play the glowing key. That's the whole method.
What's new
My practice data
Everything Strum & Keys remembers lives only in this browser — nothing is ever sent anywhere.
Unlock Strum & Keys Premium ⭐
🥁 All 40 PAS drum rudiments as guided drills
🎹 Full piano library: scales, arpeggios, chords, progressions, sight-reading