Pollux!

Picard is the next generation MusicBrainz tagging application. This new tagging concept is album oriented, as opposed to track/file oriented like the ClassicTagger was. Picard is written in Python, which is a cross-platform language, and makes use of cross-platform libraries - this allows the same code to run both on Windows, Linux and Mac OS X.

midomi.com find and discover music and people. Use your voice to instantly connect to your favorite music, and to a community of people that share your musical interests. Sing your own versions, listen to voices, see pictures, rate singers, send messages, buy music

Jaikoz is a tagger that specializes in mass tagging of music file tags. Jaikoz performs acoustic fingerprint matching and metadata lookups automatically using the MusicBrainz, Discogs and Acoustid databases. It can also look up artwork and find duplicates songs.

AudioTag.info — is a free music-recognition service. It allows you to identify almost any unknown piece of music quickly and easily. Its use is very simple: you upload a short audio fragment (even 15 seconds are enough) or an entire song, the robot analyzes it and provides you with the information about the track title, artist name, album title, etc. Your audio fragment can be in almost any file format and of almost any quality (aurally recognizable, of course) — it can be an MP3 file downloaded from the Internet or a short recording made with your old tape recorder and stored as a low-quality .WAV-file. »

Optimizing your music collection can be a daunting task, from tracks with missing metadata tags (track, artist, album names), albums missing artwork, duplicated tracks, to corrupted tracks, typically correcting these issues can be a time consuming task. No longer, imagine if a trained professional was on hand to help, PerfectTUNES is that professional

CopyTrans TuneTastic does a full iTunes cleanup: delete iTunes duplicate songs, get missing album artworks, fix iTunes missing songs, find orphan songs and import them in iTunes

SongGenie analyzes, identifies and repairs your mp3 tags and names. Get more out of iTunes and rediscover your music with SongGenie

Neat Music Cleans Up Your iTunes Automatically!

A search engine for tunes and musical themes and a collaborative music encyclopedia. Only the melody needs to be known to search Musipedia or the Web. The melody can be played on a keyboard or whistled or sung to the computer. The Musipedia collection is editable by anybody, just like Wikipedia.

Hold MusicID up to music and it'll tell you the name of the song in seconds. MusicID is the slickest way to identify any song you hear on the radio, at the movies, at the club, at the grocery store, or anywhere. Use your mobile phone to identify music you hear, look up lyrics, download songs, read artist biographies, downloads, and so much more.

Automatically fix tag problems in your MP3 library to make sure the albums don't duplicate, fragment or get lost on an iPhone/iPod touch or other tag-sorting portable players. Download and embed cover art for your MP3 folders in an automatic mode or quiclky remove embedded images from tags to save space. Recursively generate Unicode (.m3u8) playlists. On devices like iPhone and iPod, mp3 albums uploaded from PC often tend to duplicate, separate or lose original track order due to incorrect or missing id3 tags; taghycardia takes care of keeping the albums in one piece. It "knows" internally most of the causes leading to duplicate albums on iPhone, and either warns the user of errors or repairs them itself whenever possible. In addition, the program can be used as an efficient auto cover art fixer: it uses both local and online cover art images to tag mp3 files that lack embedded pictures. »

iTunes has a “Show Duplicates” command, but it is of limited use. It offers no way to remove duplicates while keeping one version of a song. It can’t identify which songs are duplicates as opposed to different recordings of the same song.

Seamless compatibilityiTunify assures a seamless integration with iTunes and takes full advantage of the latest updates of iTunes. Simple but powerfuliTunify has all the basic stuff you might need for managing your iTunes library. But iTunify lets you run very complex actions using RegEx just as well. Time savingiTunify helps you save a lot of time by automating common workflows for you. Additionaly iTunify lets you save often used terms as templates. Realtime feedbackAll actions run in iTunify take effect directly in iTunes. So there is no need to update iTunes library every time. Powerful technologiesiTunify takes advantage of technologies such as Spotlight and RegEx which makes it a very powerful assistant for iTunes. »