Introducing the OK-Notation
For a long time people have been asking me to introduce the Camelot notation to beaTunes. Unfortunately, the company that invented that notation, believes it can force other companies to license the scheme from it - a concept more than a few people disagree with. What is needed, is a truly free and open notation that features the advantages of a numeric key notation. In other words:
Nobody will ever be forced to license the scheme or - even worse - pay fees to use it.
Surprisingly, this isn't hard to achieve at all. Any harmonic mixing scheme must be based on the so called Circle of Fifths - a concept hundreds of years old. In it, neighboring keys typically match pretty well.
Circle of Fifths illustration by Just Plain Bill
All one needs to do to make it a little easier for non-musicians, is to assign numbers to each key and a letter for the mode (i.e. major or minor).
The Open Key Notation (OK-Notation) does just that. In it, the very top of the circle, i.e. A minor and C major, are denoted by a 1. The next keys in clockwise direction (G major and E minor), are denoted by a 2 and so forth. Major keys are annotated with a d (for German dur), minor keys with an m (for German moll). So C major becomes 1d.