Have you considered doing the fitting yourself? As a music producer, composer, musician, I do believe you are able to do it just fine on your own. I don’t say this because I have any inherent distrust on audiologists. In my opinion, setting up hearing aids is a very subjective thing that depends on a lot of subjective cues, language, impressions, etc…
I am an amateur/couch guitar player (at most) and was able to design a little system that led me to a great music program, for what I need it at least.