Camelot Wheel

What the Camelot wheel is

The Camelot wheel is a way of writing musical keys with a number and a letter instead of a note name. It was designed by Mark Davis for DJs who wanted to mix in key without learning music theory, and it is built on the circle of fifths that musicians have used for centuries.

Each key gets one segment: twelve numbers round the clock, and two rings. The inner ring holds the minor keys, marked A, and the outer ring the major keys, marked B. A minor is 8A, C major is 8B, E minor is 9A.

How to read the wheel

Going clockwise, each number is a fifth above the one before it. That step changes only one note of the scale: C major and G major differ by a single note, F becomes F sharp. Two keys side by side therefore sound like close relatives, and a blend between them rarely clashes.

The two keys with the same number, one on each ring, use exactly the same seven notes. They are relative keys: 8A, A minor, and 8B, C major. Moving between them keeps every note and changes the mood, from darker to brighter or back.

The numbers are positions on the wheel, not semitones or energy levels. Twelve wraps round to one, so 12A sits next to 1A.

The four moves that always blend

From any Camelot key there are four safe places to go. They cover most harmonic mixing, and a whole set can be built from them alone.

1. 1Same key: the same code, the smoothest blend there is.
2. 2One step on: one number up on the same ring, a fifth higher, which lifts the energy a little.
3. 3One step back: one number down on the same ring, a fifth lower, which settles it.
4. 4Relative key: the same number on the other ring, the same notes with the other mood.

Bolder moves and when to use them

Some moves change more than one note, so they need a short blend, a breakdown or a clean cut. They are worth knowing for the moments a set needs a lift or a turn.

1. 1Energy boost: two numbers on, the same letter. The music rises by a whole tone.
2. 2Semitone lift: seven numbers on, the same letter. The music rises by one semitone, like the last chorus of a pop song.
3. 3Diagonal: one number on and across to the other ring, from A to B, or one number back from B to A. A gentle change of mood.
4. 4Same tonic: the same home note in the other mode, 8A to 11B is A minor to A major. A strong change of colour.

Press play on a bolder move before you use it: the chords show quickly whether it suits the two tracks.

Camelot, Open Key and key names

Open Key is another numbering of the same wheel, with m for minor and d for major. Its number is the Camelot number plus five, counting past twelve back to one: 8A is 1m and 8B is 1d. Key names such as Am, A minor and F♯m say the same thing in the musician’s way.

Black keys have two names: G sharp minor is also A flat minor. They are the same key and the same Camelot code, 1A, so the wheel shows both names and accepts either in the search box.

Finding the key of a track

The Camelot wheel needs the Camelot key of the track you are playing. Your DJ software may already show it; if not, the key finder reads it from the audio in your browser, gives a second candidate when the song leans two ways, and links straight to that key here.

Tempo matters as much as key. The BPM finder reads it from the same file, and the studio’s set order keeps tempos close together, counting half and double time as a match.

What makes a mix work besides the key

Two tracks in compatible keys can still fight. Two vocals at once, two busy basslines or phrases that end at different bars will clash whatever the Camelot key says.

Use the Camelot wheel to shortlist the next track, then let your ears decide: bring it in during an instrumental part, match the phrases, and swap the basslines rather than layering them.

Playing the two chords on the wheel takes a second and catches most clashes before they reach the room.