Interesting discussion. I am 66 and feel I am only getting better at listening to and distinguishing subtle differences in music and music reproduction systems even as my hearing acuity in general has declined some - evidenced by greater difficulty following conversations in noisy echoing environments. This both due to greater experience and the fact that the spectrum of most reproduced music occurs below 10kHz. Only violins and cymbals extend much above 10kHz for acoustic instruments. The bulk of the important information is in the midrange, and if timing is your thing - it’s all there.
https://pmc.ncbi.nlm.nih.gov/articles/PMC3088642/
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PS - plus one for using care with headphone volume levels.