Spotify's Basic Pitch, Plus Editing and Sheet Music

ToMIDI runs Spotify's open-source Basic Pitch model in your browser, the same engine as the official demo, and adds the steps between detection and a finished file: instrument presets, quantize, snap to key, tempo and time signature, note editing with undo, a score view and MusicXML export. It is free, needs no sign-up, and your audio never leaves your device. Where Spotify's own Basic Pitch tools are the better fit, this page says so too.

Built on Basic Pitch
Score and MusicXML
Free, No Sign-up
Nothing Uploaded

Free · runs in your browser

Drop audio here to convert it to MIDI

MP3 · WAV · M4A · FLAC · OGG · AAC · MP4 · WEBMup to 300 MB, first 10 minutes analysed

Drag a file anywhere on this card, or press U to pick one. Conversion starts right away.

Try a real sample

Each result is this engine's actual output, not a mock-up.

Runs in your browserFree to convertNo sign-up to listenFull .mid with a free account

Only convert audio you have the right to use. Your file stays on this device.

More Tools

AnthemScore Alternative Audio to MIDI MP3 to MIDI WAV to MIDI

What Basic Pitch Is, and What the Official Demo Gives You

Basic Pitch is an open-source audio to MIDI model from Spotify's Audio Intelligence Lab, released in June 2022 under the Apache 2.0 licence (GitHub). It is tiny, with under 17,000 parameters and under 20 MB of peak memory according to its about page, and it hears several notes at once on almost any instrument or voice, pitch bends included. The free demo at basicpitch.spotify.com runs in your browser: record or drop a file, adjust note segmentation, confidence, pitch range, minimum note length and the MIDI tempo, then download the MIDI. Facts as of November 2026.

Run Basic Pitch on a File

Basic Pitch Demo vs ToMIDI: Same Model, More Tools

Both run the same Spotify model in your browser; the difference is what happens after the notes are found. Checked against the demo, the Basic Pitch README on GitHub and our own converter in November 2026.

Basic Pitch Demo vs ToMIDI: Same Model, More Tools
	This siteToMIDI	Basic Pitch (Spotify web demo)	basic-pitch Python library
Engine	Basic Pitch, through Spotify's JavaScript package	The same model	The same model
Where it runs	In your browser; audio stays on your device	In your browser; the demo says audio stays on your machine	On your computer, from the command line or Python
Install	None	None	pip install basic-pitch
Detection settings	Sensitivity, sustain, shortest note, pitch range, soft attacks	Note segmentation, confidence, pitch range, minimum note length	Onset and frame thresholds, note length, frequency range
Instrument presets	Piano, Voice, Guitar, Bass, Solo melody	No	No
Quantize	As played, or 1/8, 1/16, 1/32 grid	No	No
Key and tempo	Detected and editable; snap to key; ½×, 2×, Tap	You set the MIDI tempo	You set the MIDI tempo (--midi-tempo)
Note editing	Move, resize, add, delete, with undo	No	No
Sheet music	Yes: score view, MusicXML, PNG, SVG, PDF by print	No	No
MIDI output	Quantized or as played, tempo and key written in	MIDI download	MIDI, plus optional WAV, CSV and NPZ
Pitch bends in the MIDI	No	Yes, pitch bend detection	Yes
Several files at once	No	No	Yes, from one command

What ToMIDI Adds on Top of Basic Pitch

Basic Pitch finds the notes. These are the steps between that and a file you can use, the part a bare Basic Pitch MIDI converter leaves to you.

Instrument presets
Piano, Voice, Guitar, Bass and Solo melody each tune the note settings and the score layout. They reread the cached model output, so a switch takes a moment, not a rerun.
Timing you can hear
Switch between As played and Quantized, pick a 1/8, 1/16 or 1/32 grid, and see faint outlines where each note was really played.
Key and tempo, written in
The detected key and tempo go into the .mid. Snap stray notes into the key, fix a half or double tempo, tap the beat or set the time signature.
Note editing with undo
Select, move, resize, add and delete notes in the piano roll, with keyboard shortcuts and undo for every step.
Uncertain notes marked
Notes the model doubts are drawn dashed. Keep them, or leave them all out of the result and the export with one switch.
Score view and MusicXML
See the notes engraved on a single staff or a grand staff, then export MusicXML, PNG or SVG, or print the score to PDF.

Basic Pitch Raw Notes vs the Cleaned Result

Real output from the Bach sample in the converter above: Prelude in C, played by Kimiko Ishizaka, public domain. Step through what ToMIDI does after the model has listened.

Bach · Prelude in C, opening bars

Basic Pitch output from this site's engine · real data

47 notes as Basic Pitch heard them; 7 uncertain ones are dashed.

What you are looking at

Basic Pitch heard the opening two bars as 47 notes, 7 of them short or quiet enough to be marked uncertain: mostly overtones and re-strikes from the sustain. Leaving those out and quantizing to a 1/16 grid at the detected 111 BPM turns the raw detection into an even run of broken chords that reads cleanly as a score.

Try It on Your Own File

When Spotify's Own Basic Pitch Tools Are the Better Choice

Same model, different jobs. Reach for the official tools in these cases.

Batch work and scripting

The basic-pitch Python library converts several files in one command and fits into your own pipeline. ToMIDI converts one file at a time.

Pitch bends in the MIDI

Spotify's tools can write pitch bends for slides and vibrato. ToMIDI exports plain notes without bend data.

Raw model output

The library can save the model's raw output (NPZ) and its note events (CSV) for research. ToMIDI keeps those inside the browser.

Just a quick MIDI file

If all you want is a fast MIDI file with no edits, the official demo at basicpitch.spotify.com is as simple as it gets.

How to Use Basic Pitch Online with ToMIDI

No Python and no install: four steps from a recording to a cleaned-up MIDI file and a score.

Drop an MP3, WAV, M4A, FLAC, OGG or AAC file, use the soundtrack of an MP4 or WEBM video, or record up to a minute. Files up to 300 MB open, and the first 10 minutes are analysed.
The model, about 1 MB, loads once and runs in your tab. Notes appear in the piano roll while it works.
Choose an instrument preset, then quantize, snap to key and set the tempo. None of it reruns the model.
Download the .mid quantized or as played, MusicXML for notation apps, PNG or SVG, or print the score.

Step 1 · Add audio

Basic Pitch Audio to MIDI, Then the Fixes

What you can do with Spotify Basic Pitch audio to MIDI results here, before they reach your DAW or notation app.

Presets that reread the notes instantly

Basic Pitch is instrument-agnostic, which is its strength and also why one set of settings never suits everything. Piano keeps chords and uses a grand staff; Voice keeps one note at a time and smooths wobbly pitch; Solo melody keeps a single line; Guitar and Bass narrow the range. Each preset reruns only the note extraction on the cached model output.

Try the Presets

As played or on the grid

The model keeps your exact timing, which sounds natural but looks messy on a DAW grid. Quantize to 1/8, 1/16 or 1/32, compare As played and Quantized by ear, and move bar 1 a beat earlier or later so the downbeat lands where it should.

Quantize a Take

Key, tempo and time signature, written in

The official demo asks you for a MIDI tempo. ToMIDI detects one, plus the key and a 4/4 or 3/4 time signature, and writes all three into the .mid with a valid key signature. Halve or double the tempo, tap it, and snap stray notes into the key. For tempo alone, the BPM finder is quicker.

Set Key and Tempo

A score view and MusicXML

Switch from the piano roll to an engraved score that follows playback. Export MusicXML for MuseScore, Sibelius, Finale or Dorico, PNG or SVG for documents, or print it to PDF. Already have a MIDI file? Use MIDI to sheet music.

Open the Score View

Other Basic Pitch Alternatives in 2026

Different jobs need different tools. Facts from each project or vendor as of November 2026.

Other Basic Pitch Alternatives in 2026
	What it is	Engine	What you get
NeuralNote	Open-source plugin (VST3, AU) and standalone app (GitHub)	Built on Basic Pitch until version 2.0 (October 2026), which moved to the MuScriptor model, whose weights are for non-commercial use	MIDI dragged into your DAW or saved as a file
Melodyne 5	Desktop audio editor and DAW plug-in (trial)	Celemony's own detection; polyphonic editing in the editor and studio editions	MIDI export from the assistant edition up, after a 30 day trial; edits the audio itself
AnthemScore	Desktop and web transcription software (editions)	Its own machine learning model	Sheet music PDF from $29; MIDI and MusicXML from $39. See our AnthemScore alternative page

Who Uses Basic Pitch Through ToMIDI

People who like what Basic Pitch hears but need more than a raw MIDI file.

Producers

Pull a melody or a bass line into the DAW already on the grid, with tempo and key written in. More DAW tips on the MP3 to MIDI page.

Singers and hummers

The model hears voice well, and the Voice preset keeps one note at a time and smooths the wobble. See voice to MIDI for recording tips.

Learners

Go from a recording to a printable score with the song to piano setup: grand staff, hand split, print.

Developers and the curious

Hear what Basic Pitch does with your own audio before you install the Python library or build it into an app.

Basic Pitch Questions, Answered

Facts as of November 2026, from Spotify's pages, the GitHub README and our own converter.

What is Basic Pitch?

Basic Pitch by Spotify is a free, open-source audio to MIDI model from the company's Audio Intelligence Lab, released in 2022 under the Apache 2.0 licence. It is lightweight, polyphonic and instrument-agnostic, and it detects pitch bends. You can try it in Spotify's web demo, install it as a Python library, or run it here with editing and a score view.

Is Basic Pitch free, and does it work online?

Yes to both. The official demo at basicpitch.spotify.com is free and runs in your browser, and the code is open source on GitHub. ToMIDI is another free way to use Basic Pitch online, with presets, quantize, key and tempo, editing and sheet music export added.

Is ToMIDI the same as Spotify Basic Pitch?

It runs the same model through Spotify's own JavaScript package, so the detected notes start from the same place. What differs is everything after: presets, cleanup, editing, the score view and the export formats. ToMIDI is not made by or affiliated with Spotify.

How accurate is Basic Pitch?

It depends on the source, and its README says it works best on one instrument at a time. A single voice or melody instrument usually comes through well, solo piano is good but chords need checking, and full mixes are rough. We have not measured percentages yet, so we give none; the dashed uncertain notes show where to look first.

Can Basic Pitch transcribe drums?

No. The model is built for pitched notes, so drum hits come out as random notes, and ToMIDI inherits that. For percussion, use your DAW's drum to MIDI feature or a drum-specific tool.

Does Basic Pitch work on a full song?

It runs on anything, but a full mix puts every instrument into one track with plenty of extra notes. It does best on one instrument or voice at a time, and ToMIDI has no stem separation yet, so convert a solo recording or an isolated part when you can.

Can Basic Pitch make sheet music?

Not on its own: the demo and the library produce MIDI. ToMIDI adds a score view on top, with a grand staff for piano, and exports MusicXML, PNG, SVG and a PDF through print. To engrave a MIDI file you already have, use MIDI to sheet music.

Does ToMIDI keep Basic Pitch's pitch bends?

No. The .mid from ToMIDI holds plain notes with no pitch bend data. If you need bends for slides and vibrato, use Spotify's Python library, whose README says its MIDI comes complete with pitch bends; the official demo also advertises pitch bend detection.

Is Basic Pitch a good MP3 to MIDI converter?

For one instrument or voice, yes, and MP3 works like any other format. Basic Pitch MP3 to MIDI results get rough on dense mixes, as with any source. The MP3 to MIDI page has tips for converting songs.

Basic Pitch or Melodyne for audio to MIDI?

They do different jobs. Melodyne edits the pitch and timing of the recording itself and exports MIDI from its assistant edition up, after a 30 day trial. Basic Pitch only produces MIDI, but it is free and open source. To get the notes into your DAW, the free route through ToMIDI is enough; to retune a vocal, Melodyne is the tool.

Is NeuralNote still based on Basic Pitch?

Not any more. NeuralNote, the open-source plugin, was built on Basic Pitch until version 2.0, released in October 2026, which switched to a model called MuScriptor with weights licensed for non-commercial use. For the original model, use the Python library, the demo or ToMIDI.

How do I install Basic Pitch?

For the Python library, run pip install basic-pitch, then call basic-pitch with an output folder and your audio files. To skip installing anything, use the converter at the top of this page: it runs the model in your browser.

Which files can I convert here?

MP3, WAV, M4A, FLAC, OGG and AAC, plus the soundtrack of MP4 and WEBM video, up to 300 MB with the first 10 minutes analysed. You can also record from the microphone. Our free audio to MIDI converter on the homepage uses the same engine.

Is my audio uploaded?

No. ToMIDI runs the model inside your browser tab, so the file never leaves your device. The model, about 1 MB, downloads the first time you convert.

More Converters Built on Basic Pitch

The same engine, set up for each kind of recording.

Edit, Play and Compare

Keep working on the MIDI, or see how ToMIDI compares with desktop software.

Run Basic Pitch with ToMIDI Now

Drop a file here: Basic Pitch finds the notes in your browser, and you leave with a clean MIDI file and a score. Free, nothing uploaded.

or drop it anywhere on this box