Thanks for this. It is perhaps the clearest explanation ever of the musical scale, and why it is the way it is. I've literally watched dozens of YouTube video

Thanks for this. It is perhaps the clearest explanation ever of the musical scale, and why it is the way it is. I've literally watched dozens of YouTube videos on this topic in the past week, and none of them are as clear and insightful as this was. You do have to wonder what an optical octave would look like, though - our visual range is, unfortunately, a bit short of an octave there... Maybe the same "tone" of a kind of extreme magenta?