DJ key compatibility
Harmonic mixing and key compatibility calculator
Compare two track keys, translate musical, Open Key and Camelot-style notation, and find conservative same, relative and adjacent-key DJ transitions.
Harmonic mixing: settings and guide
Worked example
Example: A minor into E minor
A minor is 1m in Open Key and 8A as a Camelot code. E minor is 2m and 9A. Because they are adjacent minor keys, the calculator marks the transition as compatible while still recommending that you check the actual melodies by ear.
Good to know
Assumptions and limits
- Key-analysis software can identify the wrong tonal center or mode, especially in ambiguous tracks.
- Compatible keys reduce one source of clashes but do not guarantee that vocals, melodies, bass lines or arrangements will blend well.
- Transitions outside the conservative relationships can still work through percussion, short blends, deliberate tension or key shifting.
Review BeatTiming's calculation accuracy, precision and release-testing methodology.
Key notation reference
Musical key, Open Key and Camelot-style codes
The 24-key cross-reference lets you translate the label reported by different DJ applications. The table is a notation map, not a promise that analysis software identified the track's tonal center or mode correctly.
24-key notation cross-reference
Musical key names mapped to Open Key and Camelot-style DJ notation| Musical key | Open Key | Camelot-style |
|---|
| A♭ minor | 6m | 1A |
|---|
| E♭ minor | 7m | 2A |
|---|
| B♭ minor | 8m | 3A |
|---|
| F minor | 9m | 4A |
|---|
| C minor | 10m | 5A |
|---|
| G minor | 11m | 6A |
|---|
| D minor | 12m | 7A |
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| A minor | 1m | 8A |
|---|
| E minor | 2m | 9A |
|---|
| B minor | 3m | 10A |
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| F♯ minor | 4m | 11A |
|---|
| C♯ minor | 5m | 12A |
|---|
| B major | 6d | 1B |
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| F♯ major | 7d | 2B |
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| D♭ major | 8d | 3B |
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| A♭ major | 9d | 4B |
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| E♭ major | 10d | 5B |
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| B♭ major | 11d | 6B |
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| F major | 12d | 7B |
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| C major | 1d | 8B |
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| G major | 2d | 9B |
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| D major | 3d | 10B |
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| A major | 4d | 11B |
|---|
| E major | 5d | 12B |
|---|
Quick answers
What keys are compatible for harmonic mixing?
Conservative choices are the same key, the relative major or minor, and either adjacent key on the same major or minor ring.
What is Open Key notation?
Open Key is the numbered major-and-minor notation used by Traktor. This calculator shows its equivalent beside the musical key and Camelot-style code.
Does a compatible key guarantee a good transition?
No. Key is only one factor. Melody, vocals, bass, phrasing, energy and the exact overlap still need to be judged by ear.