MelodyTrace

Basic Pitch MP3 to MIDI Converter

Run Spotify's Basic Pitch neural network on your MP3 or WAV — the same open-source model, with a piano-roll preview and fine-tune controls, right in your browser.

MP3MIDIBasic Pitch
  • Spotify Basic Pitch
  • Piano roll preview
  • Fine-tune controls
Start converting

Conversion studio

Choose a format and add your track

Drop your track here or browse

MP3 or WAV · processed securely

Maximum file size: 50 MB

Result

Waiting

Your result shows up here

Pick a format and add a file on the left. The transcription lands here as a piano roll you can play, edit, and download.

  1. 01

    Add a file

    Drop in MP3, WAV, or MIDI

  2. 02

    Convert

    Pitch and timing detected for you

  3. 03

    Edit & export

    Fix notes, export MIDI or sheet music

How it works

01

Upload your audio

Drop an MP3 or WAV. The Basic Pitch model transcribes the pitches and timing into MIDI — no account needed to convert and preview.

02

Preview and fine-tune

Inspect the transcription on a piano roll and adjust the same parameters Basic Pitch exposes — onset/frame sensitivity, minimum note length, and pitch bends — then re-transcribe.

03

Download MIDI or sheet music

Export the MIDI, edit notes on the roll, or export sheet music as MusicXML/PDF for MuseScore, Sibelius, or printing.

Formats & limits

Input formats
MP3
Output
MIDI
File limits
50 MB · 10 min
Price
Free · no sign-up

Getting the most out of Basic Pitch

  • Basic Pitch is strongest on monophonic, harmonic instruments — vocals, flute, violin, lead guitar, piano melodies.
  • Lower the sensitivity thresholds if you get too many spurious notes; raise them to catch quiet or short notes.
  • Enable pitch bends for expressive sources like voice or bent guitar strings so slides are captured.
  • The model outputs a draft — use the editor to fix the last few notes rather than re-recording.

Frequently asked questions

What is Basic Pitch?

Basic Pitch is an open-source audio-to-MIDI transcription model released by Spotify. It detects note pitch, timing, and pitch bends from raw audio without needing any instrument-specific training.

Is this the real Basic Pitch model?

Yes. Transcription is powered by the official Basic Pitch (ICASSP 2022) model, with a browser UI on top for preview, fine-tuning, editing, and export.

Is it free to use?

Yes. Conversion and browser preview are free with no account required. Signing in saves results to your history and unlocks editing and sheet music export.

What parameters can I adjust?

You can tune detection sensitivity (onset/frame thresholds), the minimum note length, and whether to detect multiple pitch bends, then re-transcribe without re-uploading.