Musecore plugin QML bindings documentation

Hello @msfp, thanks for the links; I have already had a look at those before, but I still haven't found what I am looking for. What I am after would be something along the lines of:

• general concepts, class model and object hierarchy of a score in MuseScore, i.e. what a score consists of, presumingly staves, each staff being made up of this and that, discretisation choices into ticks, all of that.
• exposure of said concepts in an API for plugins to use, ideally not in the original C++ syntax, but how the plugin QML code would use it in an IDE.

Once I get a better understanding of matters in MuseScore, I am happy to produce some technical prose, including diagrams and what not. I also need to understand differences in the MuseScore version and the API versioning which I haven't quite figured out. Talking of the API, I would wish for something like the following.

If the author of a plugin states import MuseScore 3.5 at the beginning of the script, there would be constructs such as MuseScore.invoke(Command.SelectAll) instead the error-prone cmd("select-all"), a) using incomplete English words and b) second string literals. Ditto for all sorts of calls, arguments, enumerations, all typed and using complete English words. We are in 2025 after all.