You could do an mp3 management system that would read that could have many neat features. Many systems such as this already exist, but i guess it could be fun anyways. Depending on how much time you want to put into it, there are a lot of things you could do with this project.
Just some ideas would be:
- Create playlists based on author or type
- Allow the user to gather all the mp3's to a central directory, with subdirectories for type and sub-subdirectories for author
- Edit the tags and filename for each mp3
- Actually play the mp3's