MP3 tag is a generalized term for the metadata of any MP3 file. A lot of music lovers like to keep their song collections organized. MP3 tags are made for such users. It provides all the information related to the MP3 file like name, the genre of music, name of the album, name of the artist, and many more. The main purpose of the tag is to provide all the information about any MP3 file so that the user does not face any problems in finding such files.