Why are some frequencies considered musical notes and some are not?

Question

Is there some inherent quality in the frequencies that make them notes, or is it just an arbitrary human construct?

In: Other

Answer 1

There is a close to universal music scale that everyone uses, but there are cultures that use notes (frequencies) that don’t fall in line the same way and whose frequencies fall in between. Some even have more or less notes than what’s considered universal. 

One example is the [Pelog scale](https://www..wikipedia.org/wiki/Pelog)