Alternative cross notation plugin?

Hi guys,

I am discovering many alternative notation systems and i developt cross notation. Its very similair like 'flat notation'. In Flat notation there is never a key signature because every 'black' key is writen as flat. I converted this score of bach; Invention 2 to a simpler version.

In Cross notation every 'black' key is writen as a cross note head. Look just in in the score. The good thing about this: there is just one way to write a piece down. There are no sharps and repair stabbings.(is it the right word@google translate;-))

Well my question is. Should it be possible to write a plugin that automaticly converts a normal score to cross notation? Of course the playback is not like what's been writen but that doesn't matter. for example: when there is writen a D-flat, the plugin has to make a D of it but with a cross notehead.

Best, Philip Bergwerf