A place to gather miscellaneous development notes.
Generate and view doxygen code documentation from the rosegarden directory as follows:
doxygen xdg-open build/doc/html/index.html
Or substitute your favorite browser for xdg-open.
These used to be available online at http://rosegarden.sourceforge.net/code_doc but that is no longer maintained.
These are short explanations that have come up on the Rosegarden developers' mailing list at one time or another, sometimes with a bit more detail added in the wiki.
See also the rosegarden-devel archives.
https://sourceforge.net/p/rosegarden/code/HEAD/tree/branches/obsolete/docs/
There are several plain-text documents found in the old Rosegarden svn repository.
These ones are either vaguely interesting, or at least not hopelessly out of date: