https://www.pianostreet.com/smf/index.php/topic,31515.0.htmlHi and wellcome to the forumI post the following link on the fundamentals of piano practice. I think you will find all the help you need. For me this book is the bible of the pianist. Vert useful .
Is CC Chang an accomplished pianist? Just curious, what´s his background?
If you don't have it their is a brilliant book available for download on the web. It is called Fundamentals of piano practice by C. C. Chang at https://members.aol.com/chang8828/contents.htm Chang talks about the importance of memory play in practicing. It has really helped me a great deal. He also talks about intuitive and counter intuitive practice, intuitive meaning to always practice slow, which I have learnt is not such a great idea. He discusses invention no 8 in detail. The ideas don't work for everyone but I think it is the best book I have read on piano practice. good luck