John...I had a similar problem. My aids have 3 programs I can choose from depending on my surroundings. The audiologist designed a program just for
music based on what I told her. It was better, but while playing the keyboard, I heard a tinny warble in the high registers. I made an appointment with her
and brought my KB into her office. I would play a high note and then replicate what I heard with my voice, warble and all. She understood and went to work
tweaking the music program in my aids until the notes I played sounded like they should to me.

I don't know if many audiologists would put up with me or would accommodate a patient playing a KB in his/her office....but mine did and she has
helped me immeasurably.

Two critical components that have made a major difference for me: A really good audiologist and high quality aids from a company that has a good warranty.

Eddie