I feel hesitant about steganography because it would require two unattested scenarios to be true: large scale nonsense text generation and a novel encoding system embedded therein. Although I guess if whoever made this was capable of one, they'd also be capable of the other.
Some of the problems you point out could be solved by glyph variants. For example if only the minim matters, not what type of extra part is attached to it. (I don't know if this particular change would solve anything, it's just a made up example). This would turn the burden of multiple codes into a matter of esthetic scribal preference.
Some of the problems you point out could be solved by glyph variants. For example if only the minim matters, not what type of extra part is attached to it. (I don't know if this particular change would solve anything, it's just a made up example). This would turn the burden of multiple codes into a matter of esthetic scribal preference.