@mattly @LadyDragonfly Wait, this is the just intonation guy, isn't it!? I totally didn't connect the two.
When I was in college, I experimented with music and came up with what I thought was my own novel music theory, based on the physics of sound. Years later I discovered that (of course!) it wasn't novel at all, aside from the particular idiosyncrasies of my approach, and that it's called just intonation. If this is the person I think it is, then I've been reading his work and being inspired by it for decades now, and I never even realized he had an actual book to read. (I don't pay a lot of attention to specific authors and tend to gather material sporadically and on the fly. Also, I'm terrible with names.)
I think he has also done a lot of work on the physiology and neurological processes of hearing, as well.