Music Lab
BPM & key finder
Analyse audio in your browser to estimate tempo and key.
Your work stays in this browser.
Choose an audio file
PRACTICAL GUIDE
Understand the result
How to use it
Choose a clear recording and a steady section with little noise. Analysis stays in your browser.
Worked example
A steady pulse may return 120 BPM and several ranked key candidates.
Assumptions and common mistakes
Tempo can be detected at half or double speed. Modulation, tuning, sparse harmony and rubato reduce reliability.
Put it to the test — listen to the latest Del Glorio releases.