Last time I ended with a question: why are certain numbers close to 1 so important in tuning systems? It helps to understand a bit about this before we plunge into the study of well temperaments. It turns out that in some sense western harmony evolved one prime at a time, so let’s look at the subject that way.
This is a companion discussion topic for the original entry at https://johncarlosbaez.wordpress.com/2024/01/18/well-temperaments-part-2/