MusicWave analysis tool

BPM & Key Finder

Drop in a track to estimate its tempo, key, scale, Camelot notation, and meter in your browser.

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Drag & drop your file here, or choose a file. We support MP3, WAV, M4A, AAC, FLAC, OGG up to 50MB.

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0generation credits used

50 MBmaximum source file

6common audio formats

Localrecent analysis history

What the tool does

Estimate tempo and key without generation credits

Use the returned BPM, scale, Camelot code, and meter as estimates you can verify by ear.

Analyze common audio files

Use MP3, WAV, M4A, AAC, FLAC, or OGG audio up to 50 MB.

Estimate the tempo

See an estimated BPM and tempo label, then tap along or listen again when the rhythm is ambiguous.

Find key and Camelot notation

Get an estimated key, scale, and Camelot code for planning a mix or musical transition.

Keep recent results nearby

Reopen recent analyses stored for your browser or account without uploading the same file again.

Run the analysis in the browser

The page analyzes the selected file on your device rather than spending music-generation credits.

Check the estimate by ear

Tempo and key detection can be wrong on live, sparse, modulating, or rhythmically complex recordings. Verify the result before a final mix.

Three steps

Choose a supported file, run the browser analysis, and check the tempo and key estimates.

Choose the audio

Drop in a supported file from your device, up to 50 MB.

Run the analysis

Let the browser inspect the rhythm, pitch content, and other musical signals.

Review and copy

Check the BPM, key, scale, Camelot code, and meter, then copy what you need.

Before you start

Give the analyzer a clear musical section

Steady drums and audible harmony are easier to read than sparse intros, live timing, or songs that change key.

Use a clear section

A steady part with audible drums and harmony is usually easier to analyze than a quiet intro or breakdown.

Watch for half-time and double-time

A 70 BPM feel may also be counted near 140. Choose the reading that matches how you hear the pulse.

Confirm songs that change key

A track with modulation or ambiguous harmony may not have one reliable key for its full length.

Ways to use it

Prepare a mix, remix, or music library

Prepare a DJ transition

Compare tempo and Camelot notation before deciding which tracks may mix well together.

Set up a remix session

Use the estimate as a starting point for your project tempo and key, then line it up by ear.

Catalog a music library

Record tempo and key notes for tracks you want to sort, practice, or revisit later.

Questions

BPM & Key Finder FAQ

Straight answers about the current tool, its limits, and what happens next.

Which files are supported?+

MP3, WAV, M4A, AAC, FLAC, and OGG files up to 50 MB are supported.

Does this use credits?+

No. BPM and key analysis does not use MusicWave generation credits.

Is the BPM always exact?+

No. Syncopation, tempo changes, half-time rhythms, live timing, and quiet percussion can affect the estimate.

What does the Camelot code mean?+

It is a DJ-friendly label for the estimated key and mode, such as 8A for A minor.

Is my recent history permanent?+

Do not treat it as permanent storage. Keep your own notes if the result matters to a project.

Should I verify the result?+

Yes. Listen, tap the pulse, and check the key on an instrument or in your music software before relying on it.

More AI Music Tools

Analyze first, then remix, split, convert, or make another beat.

Ready to analyze the track?

Drop in a supported file up to 50 MB. The analysis uses no generation credits.

Analyze a Track