This class can be used to correct tags of MP3 tags of music with records stored in a MySQL database. It scans a MySQL database table with information about music albums to see which albums did not have yet the associated ID3 tags. The class accesses Web services APIs of sites like audioscrobbler.com, last.fm, lyricwiki.org and lyricsfly.com to correct the pending music tags and get other details about the stored music like: album, title, artist, genre, etc..