Actually, everything has been said in print... it's a battle of giants and it's something that Walt would say is none of your business - go right on and create the best you can. ↗
He has the common feeling of his profession. He enjoys a statement twice as much if it appears in fine print, and anything that turns up in a footnote... takes on the character of divine revelation. ↗
It might be argued that genuine spontaneity is not really possible or desirable so long as printed scores of great works exist. All modern musicians are, for better or worse, prisoners of Gutenberg. ↗
Mainly as sort of blueprints for dealing with most of the adults in their lives, to some extent with their fellows. It is this notion of aiming high and there's always hope, aim low and you might as well stop now. ↗