MusicBrainz is a community music metadatabase that attempts to create a comprehensive music encyclopedia. Automatic Audio CD and digital audio track identification using community supplied and maintained data is the first goal of MusicBrainz.
Nucleus will download a specified RSS file, and look for .torrent files that match any of the specified keywords. If a match is found it will queue up that file for download. After it has gone through the entire RSS file it will download each file 1 at a time. If no matches are found the program will just simply exit.