Key & harmony
Circle of fifths
The circle of fifths arranges the twelve keys so that neighbours are a fifth apart and share almost all their notes. The Camelot wheel is this diagram with the keys relabelled as numbers and letters.
In practice
Camelot IS the circle of fifths, relabelled. Numbers instead of key names, so the neighbours become +1 and −1.
The one thing the relabelling costs you is the reason. On the circle you can see that C major and A minor sit together because they share every note; on the wheel you see 8B and 8A and take it on trust. If you ever want to reason about a record the software has not labelled, learning the circle is the route — and it is the same twelve positions you already know, with their real names attached.
12
Positions on the circle
Same
What Camelot is
Names
What the relabelling costs
Where these come from: The mapping between the two notations. The measured behaviour of these moves in real sets is on the harmonic mixing page. For what we can measure, see which notation to use.
Why it matters
Saying that plainly saves a lot of confusion. DJs are frequently told the Camelot wheel is a DJ invention and musicians are told it is a toy version of theory; both are wrong. It is the same circle, and the only thing Camelot changed was replacing key names with numbers so the adjacent moves become arithmetic.
The practical consequence is that anything written about the circle of fifths applies directly to your library, and any musician can read your Camelot codes once you tell them the mapping. It is a relabelling, not a different system.
Frequently asked
Is the Camelot wheel the circle of fifths?+
Yes — the same twelve positions with numbers and letters instead of key names. Nothing about the music changed; only the labels did.
Why relabel it at all?+
Because "8A to 9A" is arithmetic and "A minor to E minor" is recall. Under pressure in a dark booth, arithmetic wins.
Should I learn the real key names too?+
It helps when a record is unlabelled or a detector is wrong, which is exactly when the wheel cannot help you. For everything else the numbers are enough.
Related terms
Perfect fifth
A perfect fifth is the interval of seven semitones — the most consonant interval after the octave, and the one the Camelot wheel is built from. Moving one step round the wheel is moving a fifth.
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.
Camelot vs classical key
Camelot relabels the twelve major and twelve minor keys as numbers and letters arranged so neighbours are compatible. Classical notation names the actual key. Both describe the same twenty-four keys.
Musical key
The musical key is the note a track resolves to plus whether it is major or minor — A minor, F major. It is the same information a Camelot code carries, written the way a musician would write it.
Explore: Camelot wheel · Camelot wheel guide · Camelot key · All DJ terms