I'm impressed that you could land on that conclusion! ie. That you must not have any music with extended "whatever it is" that requires HD res.
The only 'new' stuff that I have are things like @Mr. Afternoon 's releases or the first new Tears for Fears album from SDE. And those albums are all 96/24 surround sound. So I have nothing of them in 44.1/16 with which to make a comparison. I doubt if taking the time to set up a double-blind test of the stereo versions volume adjusted to within 0.1 of a dB would even be worth the effort.
Besides, I'd rather listen to raunchy sounding material that I like instead of pristine music for which I have no interest. Well, OK, Tommy James and the Shondell's Hanky Panky and the Moody Blues Go Now are really horrid sounding. (Eric Records did a commendable effort trying to make these two singles listenable.)