Key & harmony
Camelot key
Camelot notation renames every musical key as a number from 1 to 12 plus a letter — A for minor, B for major. 8A is A minor. Codes next to each other on the wheel share most of their notes.
Measured in our catalog
8A is the most crowded code in the catalog at 8.13% of 443,787 tracks with a detected key, and 1B the thinnest at 1.64% — a 4.9× spread across 24 codes.
Keys are not stocked evenly, so the same one-step move on the wheel is worth very different amounts depending on where you start. What a move reaches depends on its neighbours, not on the key you are leaving.
| Code | Tracks | Share |
|---|---|---|
| 8A | 36,060 | 8.13% |
| 6A | 28,870 | 6.51% |
| 7A | 27,293 | 6.15% |
| 4A | 26,669 | 6.01% |
| 9A | 26,484 | 5.97% |
| 5A | 25,123 | 5.66% |
Measured on 11 August 2026 across public tracks with a detected Camelot key.
Why it matters
The notation exists so you never have to know music theory in the booth. Instead of remembering that A minor and C major are relatives, you read 8A and 8B and the relationship is in the label.
What it does not tell you is how much material is actually behind each code. The keys are not evenly stocked, and a move that looks identical on the wheel can open thousands of tracks or a few hundred.
In Mixgraph
Every track page prints its Camelot code, and each of the 24 codes has a page listing what sits in it and what it mixes into.
Frequently asked
What is 8A in Camelot?+
A minor. The number is the position on the wheel and the letter is the mode — A for minor, B for major — so 8A is A minor and 8B is C major, its relative.
Which Camelot keys mix together?+
The same code, one step either way around the wheel keeping the same letter, and the same number with the letter swapped. Those three moves are what every Camelot chart teaches.
Is Camelot the same as the Open Key system?+
They describe the same twelve positions with different labels — Camelot uses A for minor and B for major, Open Key uses m and d, and the numbers are offset. Both mean the same thing on the wheel.
Related terms
Harmonic mixing
Harmonic mixing means choosing the next track by key as well as tempo — staying on the same Camelot code, moving one step around the wheel, or swapping between the major and minor of the same number.
Chemistry
Chemistry is Mixgraph’s score for how well two tracks mix, from six weighted dimensions: harmonic key, tempo, energy, groove, mood and vocals. It rates the pair, not either track on its own.
BPM
BPM — beats per minute — counts how many beats land in sixty seconds. It is the first number a DJ checks, because two tracks have to agree on tempo before anything else about them matters.
Explore: All 24 Camelot keys · Harmonic mixing chart · Key converter · All DJ terms