Robbie wrote in 020829 MMDigest, "Note-for-note manuscripts of a piano
performance are rarely published..."

What do you mean here?  For every sort of classical and also much other
music (e.g. Scott Joplin ragtime tunes), we do have note-for-note
manuscripts by the composers.  Also, many jazz recordings are
transcribed in various jazz journals.

Regards

Harald M. Mueller
Grafing b. Muenchen
Germany