[Zeke]

Hard to understand if you're not musically inclined (I'm not). However, this snippet from a quick Google says:
The connection between music and mathematics has fascinated scholars for centuries. More than 2000 years ago Pythagoras reportedly discovered that pleasing musical intervals could be described using simple ratios.

More simply put, the western scale of octaves are doubles of each. I'm guessing here because that's that amount of time I'm going to spend on this, but I assume this is done using the numerical Hz. However, I see the possibility that (our) time has nothing to do with it.