@soix
Yes, I've played instruments, though not very well. But I've been an actor, singer, stage director and audiobook narrator for over 40 years. I certainly know what pace, rhythm and timing mean. They're essential to the work I do every day! I utterly fail to see what it is you want defined. Surely you've played with musicians who can't keep time, or who don't "swing," or who don't convey any nuance or subtlety in their performances. There are audio systems that fail in this regard as well. Whether you've heard them or not I couldn't say. You seem to be highly resistive to the idea that such a thing could exist. I have no idea why. Woolly, sloppy bass in a speaker or amp is simply not going to convey the basic snap of the rhythm properly. If the midrange is bleached out I'm going to miss some of the subtle timings a singer might inject into a performance. I can't understand why this is hard to grasp.