I'm currently writing the other project I told you about in the previous log. The new software is a fork of RaspiDrums, and it will be published next week on Hackaday.io.
As a result, I will change the status of the RaspiDrums project to "completed", and work exclusively on the new project. Of course, the source codes of both projects will be available on Github.
Note that, for the new project, I intend to use tinyxml2 instead of libxml. I haven't started that yet, but that one of the many things I have to do.