Seeing that you like my scripts I made for discogs, I don't want to hold back the script I made for MixesDB.com.
It gets basic tags like ARTIST, ALBUMARTIST, ALBUM, TITLE, YEAR, GENRE and also Coverartwork and a Tracklist if available at MixesDB.com.

Mixesdb.com is a database for dj-sets which circulate in the internet with focus on electronic music. It lists dj-sets and their tracklists, file details, dates, artists, clubs, events, radio shows, podcasts, flyers, etc. Unfortunatelly, the UK oldschool sound is a bit underrepresentated at MixesDB.com, but the database is growing, and you also can contribute there if you register.

You find the download and a description how it works there:
[WS] mixesdb.com - Mp3tag Forums

Again, you need the great tagging freeware Mp3tag to use it.
Mp3tag - the universal Tag Editor (ID3v2, MP4, OGG, FLAC, ...)