notes.txt:Updated notes.

doc/notes.txt

+Is there a reason that bar 191 was marked as "blank" (blk) in the score file?
 
 
 TODO:
++ cmJson and cmLex should report the name of the file when with syntax error messages.
 + Use CSV for mod score file format (to eliminate need for labels)
 + Autoload of default pgm cfg, program, enable audio, sequence, score location.
 + Circuit switcher patch.