In continuation of the topic about tidying the iTunes library , I would like to highlight a few more utilities for working with your music library.
In the above article, the habrayuzer kitaisc wrote about SongGenie & CoverScout 3, and also mentioned the MPFreaker utility.
Each of these programs has its own capabilities, purpose, as well as pros and cons. Again, all these programs are paid.
What else is worthy of attention for editing tags of mp3 files.

TriTag

Developer's site: www.feedface.com/software/tritag.html
Price: free.

This utility can do a very valuable operation - to get tags from file names. Other features are programs: renaming files according to tags, creating a directory structure (a la iTunes, i.e. artist / album / track.mp3). There was also the opportunity to work with FreeDB, but unfortunately this feature is not available right now because MAGIX removed the web interface for accessing the database.
Personally, I use it very often, because I always look at and edit tags before adding files to the iTunes library, otherwise I don’t bring joy to disassemble a bunch of Track 1 files in iTunes.
Actually, the only thing this program does not know how to do is add covers, but CoverScout does it very well. Although personally, I usually look for pictures in google images myself and paste them into aityuns.

Screenshots of the program:

Musorg

Developer's site: peippo.eu
Price: free.

This program can, you can say, all the same as TriTag plus something else: work with tags of one file or several, rename files and directories, according to tags, make requests to FreeDB and musicbrainz. If the program itself could not find the data on FreeDB, you can specify the artist and the album yourself, and then the program will find matches on FreeDB. However, there is one feature that needs to be remembered - that the files must be located in the correct sequence, the program cannot understand which file should be first and which second. Another minus - sometimes there are problems with Russian names.
In general, the program is convenient. Still, it would have been functional from TriTag, and it would have been generally wonderful.

Screenshots of the program:

ID3 Editor

Developer's site: www.pa-software.com
Price: € 12.00 (Euro)

What good can be said about this program. The only thing she can do is edit the tags of one single open file. Actually everything. Oh yes, do not forget about the price of 12 Euros!

Screenshots of the program:

Media rage

Developer's site: www.chaoticsoftware.com
Price: $ 29.95

This is a whole set of tools for working with ID3 tags. With this program you can edit tags, analyze and equalize the sound level in mp3 files, play files without leaving the program, rename files, find covers, search on FreeDB, move your library, convert to different formats and much more. The program can work with MP3, AAC / MP4, FLAC, AIFF, WAVE, BWF, Ogg Vorbis. It is also impossible not to mention such a possibility as pipelining a set of utilities. In general, all that is needed and even more in one bottle.

Screenshots of the program:

MusicBrainz Picard

Developer's site: musicbrainz.org
Price: free.

MusicBrainz Picard is a cross-platform program (written in Python) for working with MP3 tags using MusicBrainz. It supports all major audio file formats, can calculate and search by disk ID (for CDs), good Unicode support. By the way, the site has a detailed How-To for using the program.

Screenshots of the program:

The tagger

Developer's site: getthetagger.com
Price: $ 29.

By tip, FreZZey has been added to the list. The Tagger can edit tags for several files at once, make requests to Discogs , rename files according to tags, get tags from file names, edit covers.

Screenshots of the program:

Kid3

Developer's site: kid3.sourceforge.net
Price: free.

By tip, DeepSweet added to the list. Kid3 is a cross-platform tagger. He can edit tags from several files at once, make requests to Discogs , gnudb, MusicBrainz, TrackType.org, copy data from id3v1 to id3v2 and vice versa, rename files according to tags, get tags from file names, work with covers, though he does it peculiar - opens you with Google-images and offers to drag the found cover into the program.

Screenshots of the program:

Conclusion

That's all the applications that I wanted to talk about. The only thing that can still be mentioned is the Song Sergeant program. But it is still designed specifically to work with the iTunes library. She knows how to find duplicate songs in your library, knows how to find missing (not found) files, show files with the wrong names, and also put everything in order. But since it has nothing to do with tag editing, I did not include it in the review.
At the end of the review, I decided to make a summary plate on the main features of the programs.

Program	Price	Editing tags for a single file	Editing tags for multiple files	Retrieving tags from file names	Renaming Files According to Tags	Auto-complete tags	Search and add covers
TriTag	Is free	+	+	+	+	-	-
Musorg	Is free	+	+	-	+	through a request to FreeDB or MusicBrainz	-
ID3 Editor	€ 12.00	+	-	-	-	-	-
Media rage	$ 29.95	+	+	+	+	through a request to FreeDB	+
MusicBrainz Picard	Is free	+	+	-	-	through a request to MusicBrainz	-
The tagger	$ 29	+	+	+	+	through request to discogs	+
Kid3	Is free	+	+	+	+	via a request to discogs, gnudb, MusicBrainz, TrackType.org	+

PS Unfortunately, there are no programs that can replace Tag & Rename under Windows, but in my opinion TriTag, Musorg, CoverScout, and maybe just Media Rage, even in spite of its somewhat confused and complex interface, can adequately perform the basic actions for work with tags in Mac OS X.
UPD 1 : Looked Kid3 and The Tagger. Very worthy programs.
UPD 2 : mentioned Song Sergeant.
UPD 3 : brought Sound and Music to the blog.