Basic Pitch MP3 to MIDI Converter
This online basic pitch mp3 to midi converter uses Spotify's Basic Pitch model to turn your audio into an editable MIDI file — free, in your browser, with no uploads and no signup.
Basic Pitchis Spotify's open-source polyphonic transcription model. Your Spotify MIDI file is generated completely on your own device.
Drop your MP3 here
or choose a file from your device
Supported: MP3
Convert MP3 to MIDI with Basic Pitch in 3 steps
Upload your MP3
Drag and drop an MP3 file or click Choose File. Nothing is uploaded — Basic Pitch runs locally on your device.
Transcribe with Basic Pitch
Spotify's polyphonic model detects every note's pitch, onset, and duration in real time, right in the browser.
Edit and download MIDI
Refine notes in the piano-roll editor, then download a standard .mid file that opens in any DAW.
Why convert MP3 to MIDI with Basic Pitch here
No setup, no Python
Skip pip install and terminal commands — Spotify Basic Pitch is compiled to WebAssembly and runs with one click.
Private and local
Audio is transcribed on your own device. Your MP3 never touches a server, so it is safe even for unreleased material.
Polyphonic accuracy
Basic Pitch transcribes multiple simultaneous notes, capturing chords and layered melodies that simple pitch detectors miss.
Built-in editor
Adjust note timing and pitch in the piano-roll editor before you download, instead of getting a raw one-shot file.
Basic Pitch MP3 to MIDI — FAQ
What is Basic Pitch?
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Basic Pitch is Spotify's open-source, machine-learning model that converts polyphonic audio into MIDI. It uses a convolutional neural network to detect individual notes — pitch, onset, and duration — across instruments, then outputs a clean MIDI representation. Our MP3 to MIDI converter runs the same Basic Pitch model directly in your browser via WebAssembly.
Is Basic Pitch MP3 to MIDI really free?
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Yes. The converter is free with no signup. It runs the open-source Spotify Basic Pitch model locally on your device, so there are no server costs passed on to you. Free plans convert audio up to 5 minutes; upgraded plans allow up to 15 minutes.
How is this different from the Basic Pitch demo on basicpitch.spotify.com?
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The official demo uploads your audio to a server queue. Our version runs Basic Pitch entirely in your browser — your MP3 never leaves your device, there is no queue, and you get a built-in piano-roll editor plus one-click MIDI download instead of a plain file.
Do I need to install Python or use the command line to convert MP3 to MIDI with Basic Pitch?
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No. The Spotify Basic Pitch model normally requires pip install and a terminal command. Here it is pre-compiled to WebAssembly and runs with a single click in any modern browser — no Python, no packages, no coding.
Can Basic Pitch convert polyphonic MP3 audio to MIDI accurately?
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Basic Pitch is designed for polyphonic transcription, so it handles multiple simultaneous notes better than most free tools. A single instrument or clear melody transcribes very accurately; a dense full mix with many layered instruments can produce a busier, less separated MIDI. For best results use a clip with a clear dominant melody.
Where can I use the MIDI files Basic Pitch produces?
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The exported .mid file opens in any DAW or notation software — Logic, Ableton, FL Studio, GarageBand, Sibelius, and MuseScore. You can assign instruments, change tempo and key, and edit individual notes in the built-in editor before downloading.
Does converting an MP3 to MIDI with Basic Pitch upload my file?
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No. Everything runs locally in your browser. Your MP3 is decoded and transcribed on your own device using the Basic Pitch model, so it never leaves your computer.