DJ Tool
Key Compatibility Checker
Do two tracks go together?
Choose the Camelot keys of two tracks and see immediately whether they're harmonically compatible. With a mini Camelot visualisation and an explanation of why they fit or don't.
What you learn with it
Quickly checking whether two specific tracks can be mixed harmonically. Essential for preparing a playlist.
How to use the tool
Look up the Camelot key of track A in Rekordbox (for example '8A')
Select it in the left dropdown
Do the same for track B in the right dropdown
The result appears immediately: perfect / very compatible / acceptable / avoid
The mini visualisation shows both keys on the wheel (red = track A, blue = track B)
If two tracks do not fit, rekordbox can shift the key — further than most people assume: the semitone buttons move one semitone per click, and the KEY SHIFT pad mode offers values from −12 to +12 semitones. KEY SYNC matches the key of another deck automatically; the track has to have been analysed first. KEY RESET puts it back.
The tool — try it now
15–30 minutes
Take the time in one go — hearing and timing develop through repetition, not through reading.
Tool tried — what’s next?
“Learning the Camelot rules” is the matching lesson from phase 9: Harmonic Mixing — Key & Scales (8 lessons). The learning path builds on it: step by step, with comprehension checks and progress that is saved.
- —Progress, XP and streak are saved
- —12 phases from your first track to a club set
- —Free — no download, no payment details
The tools stay free to use without an account.
Embed this on your site
You're welcome to put this tool on your own site for free — blog, forum, course page, anywhere. Copy the code and paste it where the tool should appear.
The one condition: keep the credit line below the frame. That line is the part that points back to DJLearn — without it your page has a free tool and we have nothing.
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title="Key Compatibility Checker — free DJ tool by DJLearn"
width="100%" height="320" loading="lazy"
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<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">
<a href="https://djlearn.de/en/tools/key-checker?utm_source=embed" target="_blank" rel="noopener">Key Compatibility Checker</a>
— free DJ tool by <a href="https://djlearn.de/en?utm_source=embed" target="_blank" rel="noopener">DJLearn</a>
</p>Where to learn this
Harmonic mixing