Musical Key Detector

Estimate a song's major or minor key using pitch-class energy and tonal profiles, with alternative keys and a chroma chart.

How to use

Upload tonal audio, analyze the pitch classes and compare the strongest key candidates. Confirm by ear and save your corrected key in the report.

Know the limits

Relative major/minor, modal music, detuning and key changes can be ambiguous. Percussive or single-note audio may not establish a key.

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