I only recently learned about the existence of module files when I started looking at the music that came with PySol FC.
After learning what kind of files those were, I had been able to find other music to download and add to its collection.
One module file with an interesting title had the extension "bp". I was eventually able to listen to the file: the module file player XMPlay had an old-school Amiga file extension available for it that added support for .bp files.
The FAQ notes that certain module file formats contain fundamental extensions to the module file concept - SNDH, AHX, AdLib - which it would not be practical for this program to support. I've seen a mention of "plugins" in the documentation, but they seem to be VST type plugins for modifying the audio, not plug-in modules for the program.
So is the BP format fundamentally incompatible, or is there an existing add-on for OpenMPT which would allow it to read such files? Or, for that matter, is there a converter for that format out there?