Tag your media files with this tool. PowerTagger is a console and library-based windows app for tagging of media files. Supports adding full tags, MusicBrainz tagging, and music fingerprinting.

PowerTagger Features:
1. Rename file based on tags
2. Convert M4A to MP3
3. Add tags
4. Fingerprint and Autotag

Usage:
PowerTagger [options]

Main Options:
* verbose - Verbose output
* file= - file to process (e.g., file=myfile.mp3)
* filedetect - using internal headers, determine type of file - and rename to correct extension
* convertm4a - Convert M4A to MP3 (rename)
* fingerprint - try to fingerprint the file, to get info. If works, add tags to file w/ correct info
* tagdetect - using file ID3/4 tags, try to correctly name the file (and rename to that file)

Tag Options:
album=[text]
comment=[text]
year=[number]
track=[number]
trackcount=[number]
disc=[number]
disccount=[number]
lyrics=[text]
grouping=[text]
beatsperminute=[number]
conductor=[text]
copyright=[text]
musicbrainzartistid=[text
musicbrainzreleaseid=[text]
musicbrainzreleaseartistid=[text
musicbrainztrackid=[text]
musicbrainzdiscid=[text]
musicipid=[text]
amazonid=[text]
musicbrainzreleasestatus=[text]
musicbrainzreleasetype=[text]
musicbrainzreleasecountry=[text]
pictures=[textlist,]
performers=[textlist,]
albumartists=[textlist,]
artists=[textlist,]
title=[text]
textlist, example: performers=perf1,perf2,perf3

The license of this software is Free, you can free download and free use this mp3 tag editor software.