People make a fuss about dogs, but the human brain gives some of us pretty surprising hearing abilities, too.
Ruptured eardrums interrupted my dad's music career for a while, because of pain and distortion on loud sounds. He was never able to return to the violin or viola because of bone conduction up through his jaw. But after a couple of years, he was able to get back into guitar. He continued gigging and teaching full time right up until he retired.
In preparation for some restorative surgery when he was in his 50's, he took a hearing test. It showed that aside from significant overall hearing loss, he had nothing above about 6Khz, and that was his good ear.
I first became aware of just how bad his hearing loss was while hiking in a provincial park. We came into a clearing where the cicadas were almost deafening. I mentioned it to him, and he just scowled- it was well above his audible range, and he was completely unaware of it.
Here's the crazy thing- I had perfect hearing out to about 18KHz at the time, yet he could pick out minor errors in orchestral LP's that were inaudible to me. He would mention a duff note in the cellos, and I would have to drop the needle in that spot about a dozen times before I could identify it.
After about the third time, I stopped betting him money that he had imagined it...