MIDI Quality Benchmark - MIDI Piano Trainer

Fast local regression check

Upload the same audio context plus the official reference MIDI, a MIDI from another service, and our MIDI. The files stay local in the browser. Use this after every model or cleanup change to see whether quality improved or got worse.

Audio context Optional, used for context only Official/reference MIDI Ground truth, for example MAESTRO MIDI External service MIDI Example: Eldoraudio, Klang, AnthemScore export Our MIDI Current output from our backend Previous our MIDI Optional, useful for before/after regression checks

Onset tolerance, seconds Duration tolerance, seconds Pitch tolerance, semitones

StatusWaiting for files

Reference notes0

Best candidate-

Our score-

Source	Overall	Notes	Extra control	Timing	Note duration	Total duration	Tempo	Missed	Extra