TuneLab
Key Finder
Find the musical key and Camelot code of any track. Runs on your device — files never uploaded.
Drop audio file here or click to browse
Max 30MB · MP3, WAV, FLAC, OGG, M4A
Private — processed on your device, never uploaded
How to Find the Key
- 1 Upload your audio file
- 2 Get the musical key and Camelot code
- 3 Use the Camelot code for harmonic mixing
Frequently Asked Questions
How does the key detection work?
A convolutional neural network (CNN) trained on 50,000+ tracks analyzes the audio using a Constant-Q Transform (CQT) that captures harmonic content across the full frequency range. The model outputs probabilities for all 24 major and minor keys.
How accurate is it?
Over 90% accuracy on isolated instruments and clearly tonal music. Accuracy decreases on atonal content, heavily distorted guitar, or tracks with frequent key changes. The confidence indicator shows how certain the detection is.
Does it show Camelot notation?
Yes. Results display both standard notation (e.g., A minor) and Camelot wheel notation (e.g., 8A) for DJ harmonic mixing. Related: use the Camelot Wheel tool to find compatible keys.
Can it detect key changes within a song?
The tool reports the dominant key of the entire track. For songs with modulations, the result reflects the most prominent key. For detailed key-change analysis, try the Song Analyzer which provides time-stamped results.
What's the difference between major and minor key detection?
The CNN distinguishes between relative major/minor pairs (e.g., C major vs A minor) which share the same notes but have different tonal centers. This is one of the hardest problems in music information retrieval — the model uses melodic contour patterns, not just pitch class distributions.
Is my audio uploaded?
No. The CNN model (1.8MB) runs entirely on your device. Audio is processed locally and never leaves your machine.
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