What Is the Camelot System?
The Camelot system (also called the Camelot Wheel or Open Key notation) is a method for organizing musical keys in a way that makes harmonic mixing intuitive for DJs. It was developed by Mark Davis and popularized by Mixed In Key software.
The system assigns each of the 24 musical keys (12 major + 12 minor) a number from 1–12 and a letter:
- A = Minor keys
- B = Major keys
The numbers are arranged like a clock, where adjacent keys are harmonically compatible. This makes it easy to find tracks that will blend together without harmonic clashing.