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Detect the musical key of a track
Details
Analyzes pitch-class energy over time and matches it to major/minor key profiles.
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Ready for a run
Tool usage guide
The Audio Key Detector analyzes audio files to determine their musical key, enabling quick identification of tonality for musicians, DJs, and producers.
Background
A DJ is compiling a setlist for a live performance and needs all tracks in compatible keys for smooth mixing.
Problem
Manually identifying keys is slow and prone to errors, risking dissonant transitions.
How to use
Upload each audio track to detect its key, then arrange the setlist based on harmonic compatibility.
Outcome
The DJ creates a cohesive setlist with tracks in matching or related keys, enhancing the mix flow.
Background
A producer is working on a song and wants to incorporate a downloaded sample but doesn't know its key.
Problem
Using a sample in the wrong key can cause clashes with other instruments in the project.
How to use
Upload the sample file and set analysisSeconds to 30 to focus on the main section for key detection.
analysisSeconds: 30Outcome
The producer confirms the sample's key and adjusts the project tempo or pitch for harmonic consistency.
Common audio formats such as MP3, WAV, and others under the audio/* type.
It uses pitch-class energy analysis for reliable matching to major and minor keys.
Yes, use the analysisSeconds option to specify the duration to analyze, defaulting to 90 seconds.
A JSON object with the detected key, e.g., {"key": "C major"}.
Yes, audio files must be under 200 MB.