This is a good question. I have hearing loss from being too close to a bank of JBLs at a rave 30+ years ago, and tinnitus. I’m 61.
Standard hearing tests go to 8kHz - so how are you and @billstevenson getting tested to 13.5K? (tagging jourdoktorn on this question too)
I’ve just trialed "the best" hearing aids from hear.com, the Horizon IX at $6K. 100% online/remote service. I found they worked surprisingly good listening to music using "open domes" which pass through the maximum amount of natural external sound.
They promised the world in both technology and customer service which is how they justified the premium price, and failed miserably in the first 21 days of my 45 day trial.
Unhappy with the cost and service, I found out the major player is WSA and they own Horizon, Signia (formerly Siemens) and others, as well as online businesses INCLUDING hear.com.
Next I ended up at Hear USA, had another test but this time in a booth, and got a quote for $4800 for the Signia BCT IX, which supersedes the Horizon IX.
Still unhappy with the price for what I know costs about $300 or less to make, I ended up with directhearing.com and have the Signia BCT arriving on Monday programmed with my free audiogram from Hear USA for $2700 with 12 months no interest financing and 3 years of free adjustments and supplies.
But no, I’m not missing details or nuances in music, maybe just a bit of the higher frequency info, but my hearing loss isn’t the usual age-related high frequency loss, I have more midrange loss from the trauma - so for speech I struggle with soft voices and soft words (vowels) but I designed my system to be very good in the mid range.