[vadman]

But the within-audible-range-"beat" at the recorded "listening position" (where the microphones are located) would be recorded anyway, no?[1] So how does hi-res audio help in this case?

[1] AFAIK most music is not recorded like that, instruments are recorded separately and then overlaid; but then adding realistic-sounding "beats" based on whatever positioning the sound engineer envisions should be possible in software?