Concert pianist and writer Charles Rosen (1927-2012) offers some interesting advice in his book “Piano Notes“
Do you agree with his conclusions?
“… any dogmatic system of teaching technique is pernicious. Most pianists, in fact, have to work to some extent in late adolescence to undo the effects of their early instruction and find an idiosyncratic method that suits them personally.
Not only the individual shape of the hand counts but even the whole corporal shape. That is why there is no optimum position for sitting at the piano, in spite of what many pedagogues think.”
Charles Rosen: Piano Notes – The Hidden World of the Pianist (2002)