A deliberately focused utility
About Tempo & Key Finder
A focused music-analysis utility for finding tempo, musical key and harmonic context without turning your audio into cloud data.
- BPM · key · Camelot
- Browser-local audio
- Published by DreamSpark AI LLC
Who publishes TempoKeyFinder.com?
Tempo & Key Finder is published and operated by DreamSpark AI LLC. We maintain the browser utility, explain how it works and publish evidence about its limits. For corrections, privacy questions or support, email support@tempokeyfinder.com.
A narrow job, done clearly
The site helps you estimate a recording's BPM and key, then gives you enough context to check the result yourself. It stays focused on tempo, musical key, Camelot notation and closely related theory tools.
Files stay on your device
Audio analysis runs in your browser. There is no account, payment, song database, upload endpoint or cloud analysis service in the current application.
Best-effort results, openly described
Music analysis is ambiguous. The product therefore labels results as best-effort estimates, shows useful alternative interpretations and publishes its measured limitations. It does not turn an uncalibrated detector score into a promise of correctness.
What this site is not
Tempo & Key Finder is not a general AI music creation platform. It does not generate songs, separate stems, remove vocals, manage a music library or claim official facts about a recording.
Open-source analysis components
The browser analyzer uses Essentia.js under the GNU Affero General Public License. The site provides the license text, upstream notices and corresponding source from every page footer.
Corrections and evidence
The site publishes its analysis method, measured limitations, licenses, notices and corresponding source. Generated probes and real-audio calibration are reported separately so a controlled example is never presented as proof of real-song accuracy. If you find a factual error or an unclear claim, send the page URL and correction to support@tempokeyfinder.com.