Apetag is command line tagging tool for multimedia files such as Monkey's Audio and Musepack that use the APE 2.0 standard. It also comes with a script, tagdir, that will tag all the tracks in an album by invoking apetag or other similar tools (e.g. metaflac) for each track. All that is needed is the album's freedb record.
Sonic-Rainbow is a Linux GUI multimedia player. It plays DVDs, VCDs, and video files. It plays CDs, rips CDs to Ogg, MP3, FLAC, and WAV files, and has an Ogg, MP3, FLAC and WAV player, as well as a playlist editor and a TAG editor to create and modify MP3, Ogg, and FLAC file tags. HTTP is used to download and locally store CD Info from Freedb such that the CD player, ripper, Ogg player, FLAC Player, and MP3 player are able to display CD track and artist information. The GUI playlist editor creates playlists containing single Ogg, FLAC, or MP3 files and directories of Ogg, FLAC, or MP3 files. It provides support for FM radio cards if installed.
Mp3tag is an Objective-Caml library for reading and writing ID3v1 and v2 tags in MP3 files. It includes mp3tag tools, which can be used to modify tags in MP3 files or rename files according to their tags, and a cddbtag tool that modifies tags by using a CDDB server to retrieve information about the track.
ova is a convenient console frontend for ripping CDs and encoding MP3 and wave files to the Ogg Vorbis format. It is also able to query the CDDB given a CD (or saved CD discid) or several MP3/Ogg Vorbis/wave files (very useful for downloaded albums). Ogg Vorbis files can be tagged and renamed according to elaborate patterns.
mp3cleanup is used to tidy up various aspects of MP3 files, including filenames, ID3 tags, path, m3u playlists, and bitrate. This is particularly useful for hardware MP3 players that sometimes have arbitrary limitations on the files they work (well) with. It can operate on single files or on all the files contained in a directory.
Thundaural Jukebox is a jukebox server and client designed for use with touchscreen. It is an ideal replacement for a stationary stereo system in a common area (lounge, pool room, bar, etc.). The interface to the server is generic enough to support different kinds of clients, the included client, written for a touchscreen, is just one possibility.