Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Too much knowledge is assumed

Perhaps I just don't have the mental faculties for this book, but I am now looking for a very elementary music theory book so that one day Fret Logic might make sense. The author tells the reader not to go to part 2 until part 1 is mastered, which means I will probably never make it to part 2. I feel like I need a lot more knowlege for this book to make much sense.