Free · Put found notes on a beat grid

Audio to Quantized MIDI Converter

Transcribe a recording, choose its tempo and grid, then download timing-cleaned MIDI.

  • Real note transcription
  • Audio stays in this tab
  • Useful music downloads

Find the notes

Add one instrument or voice recording. The model runs in this browser tab.

One main instrument works best Under 10 minutes
Note settingsRecommended values are already chosen.
Choose audio first
Your result will appear hereNothing is uploaded. The first run also loads a small music model into this tab.
MIDI and data downloads

Three simple steps

How to use it

  1. Add an instrument recording played near a steady beat.
  2. Enter its tempo and choose quarter, eighth, sixteenth, or thirty-second notes.
  3. Compare original and snapped timing, then download MIDI.

Your recording stays on this device

Spotify Basic Pitch and TensorFlow.js find notes inside this browser tab. Bookify does not upload or save the audio. The first run loads the open-source model, and closing the tab removes the working copy.