There are programs for both live music and recorded music that your audiologist can add with the AX platform. However, I would imagine that would only help marginally if she thinks it’s as bad as it sounds by default, but can’t hurt to try adding them.
There are a couple threads with more musically inclined folks that have tinkered with certain gains or compression (a little over my head) to improve how music sounds to them; I’d suggest running a search (here’s one, for instance: Signia Pure for Pianist? ), and maybe you can bring that information to her audiologist to try to help with adjustments. I also came across a video a bit ago with adjustments for Signia in particular, unsure how helpful it is:
