Keyshed — Night Train

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MOCK DATA

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Panel

Connect a digital piano over USB, then enable Web MIDI. Notes you play are matched against the reference within ±80 ms and each measure is tinted green (>90%), yellow (>70%) or red on the score.

running accuracy

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Play on my piano (MIDI out)

Streams a MIDI variant straight to the piano's own sounds — note on/off (and sustain-pedal CC on the pedal variants), tempo-scaled by the tempo slider.

Output Channel Variant From m.

🎹 Keyshed — Songs

Add a song

The build API isn't running — this copy of the app is served statically. On the machine with the pipeline, run bin/serve (without --static-only) and reload: one process serves the app AND builds uploads (PDF / audio / MIDI → score, sync maps, practice plan).

Drop files here or

Sheet-music PDF, a recording (wav/mp3/m4a/ogg/flac/aac) and/or a MIDI file — any combination (PDF and MIDI are alternative score sources: one or the other).

Title Slug Composer Fast build (skip fusion + practice — quicker first playable)