# MP3 to MIDI — Note Foundry

> Browser-based MP3/WAV to MIDI conversion. All processing happens locally — files are never uploaded to a server.

## What This Site Does

mp3frommidi.com converts a clear solo melody from MP3 or WAV into editable MIDI notes. The tool runs entirely in the browser using local signal processing — no AI model, no server upload, no login.

## Who Uses It

- Independent musicians capturing melody ideas
- Songwriters transposing sung or hummed melodies
- Music students learning pitch detection
- Music teachers demonstrating note-to-MIDI concepts
- Podcast creators extracting melodic motifs

## How to Use

1. Choose an MP3 or WAV file (one at a time, up to 20 MB / 2 minutes)
2. Click "Convert to MIDI"
3. Preview detected notes on the piano roll
4. Adjust detection confidence, minimum note length, and transpose
5. Download the MIDI file

## Limitations

- Best for one note at a time: a sung melody, clean lead, or solo instrument
- Chords, drums, and full mixes may produce missing or incorrect notes
- Does not separate songs into individual instrument tracks
- Uses local signal processing, not a trained AI model

## Pages

- [MP3 to MIDI Converter](https://mp3frommidi.com/) — Main conversion tool
- [MIDI to MP3](https://mp3frommidi.com/midi-to-mp3) — Reverse conversion
- [MP3 to MIDI Troubleshooting](https://mp3frommidi.com/mp3-to-midi-troubleshooting) — Common errors and fixes
- [WAV to MIDI](https://mp3frommidi.com/wav-to-midi) — WAV input guide
- [Audio to MIDI](https://mp3frommidi.com/audio-to-midi) — General audio input guide
- [About](https://mp3frommidi.com/about) — Site information
- [Contact](https://mp3frommidi.com/contact) — Contact details
- [Privacy](https://mp3frommidi.com/privacy) — Privacy policy

## FAQ

**How do I change MP3 to MIDI?** Choose your recording, select Convert to MIDI, then preview and download. Your browser must decode the file; if decoding fails, try a standard encoding.

**Can I convert a song to MIDI?** A clear solo melody is the intended input. A full mix with chords, drums and several instruments can produce missing or incorrect notes.

**Is this an AI MP3 to MIDI tool?** No. This version uses local signal processing to estimate pitches, not a trained AI model.

**Does this tool also support WAV to MIDI?** Yes. Choose a standard PCM WAV file — the browser decodes it locally.

## Agent Resources

- [AI Documentation](https://mp3frommidi.com/ai/) — Machine-readable site overview
- [OpenAPI Spec](https://mp3frommidi.com/openapi.json) — API description
- [MCP Server Card](https://mp3frommidi.com/.well-known/mcp/server-card.json) — MCP discovery
- [Agent Skills Index](https://mp3frommidi.com/.well-known/agent-skills/index.json) — Skills discovery
- [API Catalog](https://mp3frommidi.com/.well-known/api-catalog) — RFC 9727 catalog