What's Wrong with Daddy?

I read this book back in the 80's when it came out. I was into the sad books like "Six Months to Live" and this one. I really enjoyed this book a lot and felt bad for the daughter who had to watch her dad be taken by the horrible monster that is Alzheimer's. Her father is young (45, I think) and probably has what we now call Early Onset Alzheimer's Disease. I know that because now I am the one watching my dad be taken by the monster. I really want to read this book again. I am sure that it will be interesting because I have a totally different perspective now that I have seen this happen to my own father.

In this book, a very musically talented young girl watches Alzheimer's Disease destroy her father. Through love, support, and caring, the family finds a way to cope with this devastating disease, for which there is no cure.