A free app for Android, by fillobotto.
Automatic Tag Editor (ATE) is the most powerful, easy to use and automatic music tag editor. It can automatically update and edit your music tags and metadata for all the songs in your music library and even for songs that you import from other sources. You don't have to remember a single song information or update it manually anymore.
Ate automatically scans and updates your music library. It works perfectly with all the popular music libraries and players, including the ones for Android.
In just a few seconds Ate can automatically tag edit all the most popular formats like MP3, OGG, FLAC, WAV, M4A, AIFF, DASH, OPUS, and even MOD, XM, and others.