Hi Folks,
Here’s a quick interesting observation about circle of fourths and the number system in music.
If you move in fourth intervals in a given key, you will follow the pattern:
7 – 3 – 6 – 2 – 5 – 1 – 4 – ♭7 – ♭3 – ♭6 – ♭2 – ♭5
and then the circle repeats.
This means if you start at the 7th tone of the scale, e.g. B in the key of C, then move by a fourth interval, you will reach the 3rd tone of the scale, e.g. E in the key of C, etc.
Thus by memorizing this number pattern, you have a way of knowing where the next key falls on the scale when you move by a fourth.
That’s all for now. Till next time, happy music learning.