Music Note Finder — Identify Every Note In An Audio Clip
Upload a melody, a vocal take, or an instrument recording and the Music Note Finder transcribes every monophonic note it hears — complete with timing, MIDI number, and note name. Runs locally in your browser with the YIN pitch algorithm.
Drop an audio file here or click to browse
MP3, WAV, FLAC, OGG, M4A, WebM
Key features
Discover what makes this tool powerful — and private.
YIN-Based Monophonic Pitch Detection
We use the classic YIN algorithm — gold-standard for single-voice pitch detection in vocal coaching and tuning apps — with cumulative mean normalised difference and parabolic interpolation for accuracy down to a few cents.
Per-Note Timeline With Timing And MIDI Numbers
Every detected note is shown with its start and end time, name (e.g. A4), MIDI number (e.g. 69), and tuning deviation in cents — so you can spot held notes, runs, and ornaments at a glance.
Great For Singers, Whistlers, And Soloists
The Music Note Finder is tuned for single-voice sources: vocals, humming, whistling, solo flute / violin / sax, guitar solos, and melodic synth lines. Chords and dense mixes will just pick the strongest voice in each frame.
Export A MIDI File Of Your Transcription
One click exports every detected note as a Standard MIDI File. Open it in your DAW, quantise, re-voice, or feed it into an AI composer for accompaniment.
Frequently asked questions
Everything you need to know about this tool.
Single-voice, in-tune sources: a cappella vocals, humming, whistling, solo flute / violin / sax / clarinet, monophonic guitar or synth leads. Polyphonic audio (chords, full mixes) will pick the most prominent frequency in each window and is less reliable.
Not for chords — the Music Note Finder is a monophonic transcriber. If you need chord-aware transcription, combine the notes output with our Audio Key Finder to derive a basic chord outline.
YIN with parabolic interpolation typically resolves pitch to within ±5 cents on clean recordings. Noisy, reverberant, or multi-voice recordings will be less accurate; try trimming silence and isolating the lead voice when possible.
No. All analysis runs in your browser. Your file is never transmitted to our servers.
Yes — export the timeline as a Standard MIDI File (.mid) you can open in any DAW or notation software.
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