In the section above briefly touched to edit information on the title of a song. The area of information can be accessed via the right-click> Get Info. From there it's pretty self-explanatory process. As mentioned above, at least the title, artist and album is probably the absolute minimum necessary to have a clean, uncluttered music library. However, I prefer each entry of the track number, genre, year, and this screen can enter this information. Edit information for multiple songs at once. Use with caution.