[rocky4546]

The way he setup the folders is ... any COTS integration was handled in subfolders.  As an example, the mypithos is from the pithos library that I maintain and update every so often.  Musicbrainz is probably the same thing and the library used is located here:
https://github.com/rocky4546/gominoa-xbm...cbrainzngs
It has some copyright info at the top of the files, so you may be able to search and find the original libraries.