Étude Chord Score Trainer
Op. 3 No 1

Random chunks, on rotation.

Drop a score in PDF or MIDI form. We slice it into measure-chunks, then put one on screen — randomly chosen, one at a time, until every chunk has had its turn. Then we reshuffle and start again.

Why random? Interleaved practice — jumping between unfamiliar fragments instead of drilling them in order — makes recall harder in the moment, and that struggle is what consolidates the music into long-term memory. A piece you can play start to finish isn't truly learned until you can also play it from any measure. The approach is drawn from Learn Faster, Perform Better — same principles, applied to the page in front of you.

Drop your score here
or — PDF or MIDI
Everything runs in your browser. Nothing leaves your machine.
PDF
You mark the measures once (drag systems, click barlines). Markings are saved per file.
MIDI / MusicXML
Measures are detected automatically from the file's metadata.