Free · Group notes that begin together

Audio Chord Timeline Maker

Turn simultaneous transcribed notes into a simple chord timeline with times and note spellings.

  • 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 a clean chord instrument recording.
  2. Choose how close note starts must be to count as one chord.
  3. Review the chord names and download CSV or JSON.

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.