"Historically, the notes of scale systems anywhere have been based on these pure harmonics"

In this quote, Lara St. John is talking about the historic origins of musical scale systems. She notes that throughout history, these systems have been built on the foundation of pure harmonics. This refers to the natural, mathematical relationship between various musical notes and their frequencies. St. John is highlighting the fact that these pure harmonics have been the basis for producing musical scales in numerous cultures and areas worldwide. This quote emphasizes the importance of understanding the basic concepts of music and how they have affected the advancement of different scale systems throughout history.