when your hearing is not as good as it was . . .

It’s normal to loose ability to hear higher frequencies with age. The good news is 10 kHz and above is mainly where “air” occurs in music meaning cymbals lose their sheen and sparkle, etc but most music occurs well below that frequency. On the plus side a lot of noise and distortion that can make listening fatiguing also occurs at those higher frequencies so older ears will naturally filter that out.

Other than that, what one hears or not and what differences can be discerned or even matter will vary case by case. A hearing test is really the only way to know. The good news is that once does know and up to a certain point equalization might be applied to compensate. Modern Digital Signal Processing for example like that included in Roon streaming makes applying equalization for a variety of purposes easier than ever.

At 67 I can still hear the higher notes, it’s the tinnitus after listening that sucks.  Might be speaker induced, too.

Check ot the Widex 440 Series. I did a lot or research when i was lookng for my hearing aids.  It seems like the Widex 440 is used by a lot of musicians.  It has a 10-Band equalizer that the doctor sets up and a three-band equalizer that you can adjust and save the settings. Sound, to me, is very natural. It opened up my music enjoyment again and I cna't be happier.

Attached is a link to a paper that I came across in my research - Hope it helps

+1 @hilltoppa 

At 74 I am on my third pair of aids. The first two were so bad that I couldn't stand to wear them. Expensive well known brands - but awful, particularly with music. Now using Widex 440 and couldn't be happier. Very natural sounding: no edginess, no grit and grain, no fatigue. 

+2 @hilltoppa 

Getting Widex hearing aids helped. The three band equalizer in the user software less so. I use Roon software to stream and the parametric equalizer built into the software was more helpful in zeroing in frequency ranges needing a boost. But in the end the hearing aids were the most help and the audiologist can retune them. 
 

Each person has different levels of loss so seeing an audiologist who can offer a high quality hearing aid is to me the first step. Don’t know how the Jabra’s compare to the Widex, but the latter are pricey, as much as a very decent preamp. 
 

I can still hear the difference between good and bad recordings, better interconnects and speaker cables vs. less effective ones, but I do still miss some very high frequency details over about 7,000 Hz. You can only recover so much with technology. So sit back and enjoy the music.