What is the point of fixing your hands in a particular position "into" the keys? Watch any professional; it varies enormously as they play at different volumes and with different textures
dear j-menzmy teacher says finger should move on the edge of keys. that is possible when i am looking to the keyboard but with sight reading is impossible.
dear p2uI didnt mean fixed postion I meant rest position of hand.Because my teacher insists that I should play on the edge of keys except for pieces with lots of black notes .