My open-style hearing aids definitely won’t do this.
This is because they are not set up to do that, your audiologist has set them up for speech recognition and not music (loud, outdoor concert, etc.)
the audiologist felt that open rather than closed hearing aids would be a better solution for me
Again this is because the audiologist has set them for speech at your level of loss.
Going the path will allow you to see for yourself what can be achieved within the software.
hearing aids would adequately attenuate sound from a loud live band situation
Yes it can be done, with and noise reduction settings, just about anything is possible.
DIY programming to address issues with music, would sufficiently address the issues I described?
Music is one of the hardest to set up for the individual, but there are a few forum members who have done this for themselves with good results, again just use the search button to find them.
I don’t have any issues with my own music program, find it quite nice and clean sound.
If so, I’m surprised and curious why my audiologist recommended against them…
Ha, well if everyone believed everything they said there wouldn’t be a use for a DIY forum like here ; )
But seriously like any good audiologist (or doctor) they can only offer so much, they simply can’t hear what you do, so only you know what you can hear and good you think it is for any given situation, the only way to be sure is doing DIY.
You’re ignoring this member’s posts.