I recall something like this from a sound system engineering course I took in 1990. It was a course for people wanted a job of setting up speakers and operating

I recall something like this from a sound system engineering course I took in 1990. It was a course for people wanted a job of setting up speakers and operating the mixing board. (It was supposed to be a course to be a recording studio sound engineer... I'm still pissed) The instructor would often mention odd transharmonic distortion. It sounds pleasant to our ears but even transharmonic does not. That's about all we were told about that. Years later I was reading about brains and somehow I understood transharmonic distortion. The article mentioned something that I now forget but it was clear to me why we like to listen to loud rock music.